1056858812657 has 16 divisors (see below), whose sum is σ = 1141306986240. Its totient is φ = 975647504832.

The previous prime is 1056858812623. The next prime is 1056858812663. The reversal of 1056858812657 is 7562188586501.

1056858812657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1056858812657 - 2²⁸ = 1056590377201 is a prime.

It is a super-2 number, since 2×1056858812657² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056858812657.

It is not an unprimeable number, because it can be changed into a prime (1056858812617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300388 + ... + 1950570.

It is an arithmetic number, because the mean of its divisors is an integer number (71331686640).

Almost surely, 2^{1056858812657} is an apocalyptic number.

It is an amenable number.

1056858812657 is a deficient number, since it is larger than the sum of its proper divisors (84448173583).

1056858812657 is a wasteful number, since it uses less digits than its factorization.

1056858812657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652672.

The product of its (nonzero) digits is 32256000, while the sum is 62.

The spelling of 1056858812657 in words is "one trillion, fifty-six billion, eight hundred fifty-eight million, eight hundred twelve thousand, six hundred fifty-seven".