1047095818729 has 3 divisors (see below), whose sum is σ = 1047096842007. Its totient is φ = 1047094795452.

The previous prime is 1047095818721. The next prime is 1047095818757. The reversal of 1047095818729 is 9278185907401.

The square root of 1047095818729 is 1023277.

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

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., 1042369531225 + 4726287504 = 1020965^2 + 68748^2 .

It is not a de Polignac number, because 1047095818729 - 2³ = 1047095818721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047095818721) 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, 511639 + ... + 1534915.

It is an arithmetic number, because the mean of its divisors is an integer number (349032280669).

Almost surely, 2^{1047095818729} is an apocalyptic number.

1047095818729 is the 1023277-th square number.

1047095818729 is the 511639-th centered octagonal number.

It is an amenable number.

1047095818729 is a deficient number, since it is larger than the sum of its proper divisors (1023278).

1047095818729 is an frugal number, since it uses more digits than its factorization.

1047095818729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046554 (or 1023277 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 61.

The spelling of 1047095818729 in words is "one trillion, forty-seven billion, ninety-five million, eight hundred eighteen thousand, seven hundred twenty-nine".