1056274871685 has 64 divisors (see below), whose sum is σ = 1901368491264. Its totient is φ = 496223539200.

The previous prime is 1056274871573. The next prime is 1056274871689. The reversal of 1056274871685 is 5861784726501.

It is not a de Polignac number, because 1056274871685 - 2⁸ = 1056274871429 is a prime.

It is a super-2 number, since 2×1056274871685² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056274871689) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1112347 + ... + 1830263.

It is an arithmetic number, because the mean of its divisors is an integer number (29708882676).

Almost surely, 2^{1056274871685} is an apocalyptic number.

1056274871685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056274871685 is a deficient number, since it is larger than the sum of its proper divisors (845093619579).

1056274871685 is a wasteful number, since it uses less digits than its factorization.

1056274871685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718214.

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 1056274871685 in words is "one trillion, fifty-six billion, two hundred seventy-four million, eight hundred seventy-one thousand, six hundred eighty-five".