1755791953969 has 3 divisors (see below), whose sum is σ = 1755793279033. Its totient is φ = 1755790628906.

The previous prime is 1755791953943. The next prime is 1755791954003. The reversal of 1755791953969 is 9693591975571.

The square root of 1755791953969 is 1325063.

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 is not a de Polignac number, because 1755791953969 - 2⁷ = 1755791953841 is a prime.

It is a super-2 number, since 2×1755791953969² (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 = 1755791953895 and 1755791953904.

It is not an unprimeable number, because it can be changed into a prime (1755791953919) 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, 662532 + ... + 1987594.

Almost surely, 2^{1755791953969} is an apocalyptic number.

1755791953969 is the 1325063-rd square number.

1755791953969 is the 662532-nd centered octagonal number.

It is an amenable number.

1755791953969 is a deficient number, since it is larger than the sum of its proper divisors (1325064).

1755791953969 is an frugal number, since it uses more digits than its factorization.

1755791953969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650126 (or 1325063 counting only the distinct ones).

The product of its digits is 723350250, while the sum is 76.

The spelling of 1755791953969 in words is "one trillion, seven hundred fifty-five billion, seven hundred ninety-one million, nine hundred fifty-three thousand, nine hundred sixty-nine".