1056274757657 has 4 divisors (see below), whose sum is σ = 1207171151616. Its totient is φ = 905378363700.

The previous prime is 1056274757653. The next prime is 1056274757669. The reversal of 1056274757657 is 7567574726501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1056274757657 - 2² = 1056274757653 is a prime.

It is a super-2 number, since 2×1056274757657² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056274757657.

It is not an unprimeable number, because it can be changed into a prime (1056274757653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75448196969 + ... + 75448196982.

It is an arithmetic number, because the mean of its divisors is an integer number (301792787904).

Almost surely, 2^{1056274757657} is an apocalyptic number.

It is an amenable number.

1056274757657 is a deficient number, since it is larger than the sum of its proper divisors (150896393959).

1056274757657 is an equidigital number, since it uses as much as digits as its factorization.

1056274757657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150896393958.

The product of its (nonzero) digits is 86436000, while the sum is 62.

The spelling of 1056274757657 in words is "one trillion, fifty-six billion, two hundred seventy-four million, seven hundred fifty-seven thousand, six hundred fifty-seven".