1156457813634 has 24 divisors (see below), whose sum is σ = 2539982689452. Its totient is φ = 380205308160.

The previous prime is 1156457813557. The next prime is 1156457813639. The reversal of 1156457813634 is 4363187546511.

1156457813634 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 4 + 578 + 1 + 3 + 63 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1116118296225 + 40339517409 = 1056465^2 + 200847^2 .

It is not an unprimeable number, because it can be changed into a prime (1156457813639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440051127 + ... + 440053754.

Almost surely, 2^{1156457813634} is an apocalyptic number.

1156457813634 is an abundant number, since it is smaller than the sum of its proper divisors (1383524875818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156457813634 is a wasteful number, since it uses less digits than its factorization.

1156457813634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880104962 (or 880104959 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 1156457813634 in words is "one trillion, one hundred fifty-six billion, four hundred fifty-seven million, eight hundred thirteen thousand, six hundred thirty-four".