1047169495969 has 3 divisors (see below), whose sum is σ = 1047170519283. Its totient is φ = 1047168472656.

The previous prime is 1047169495949. The next prime is 1047169495979. The reversal of 1047169495969 is 9695949617401.

The square root of 1047169495969 is 1023313.

It is a perfect power (a square), and thus also a powerful number.

1047169495969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 599223069025 + 447946426944 = 774095^2 + 669288^2 .

It is not a de Polignac number, because 1047169495969 - 2²¹ = 1047167398817 is a prime.

It is a super-2 number, since 2×1047169495969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1047169495898 and 1047169495907.

It is not an unprimeable number, because it can be changed into a prime (1047169495949) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 511657 + ... + 1534969.

It is an arithmetic number, because the mean of its divisors is an integer number (349056839761).

Almost surely, 2^{1047169495969} is an apocalyptic number.

1047169495969 is the 1023313-rd square number.

1047169495969 is the 511657-th centered octagonal number.

It is an amenable number.

1047169495969 is a deficient number, since it is larger than the sum of its proper divisors (1023314).

1047169495969 is an frugal number, since it uses more digits than its factorization.

1047169495969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046626 (or 1023313 counting only the distinct ones).

The product of its (nonzero) digits is 132269760, while the sum is 70.

The spelling of 1047169495969 in words is "one trillion, forty-seven billion, one hundred sixty-nine million, four hundred ninety-five thousand, nine hundred sixty-nine".