1156117757831 has 8 divisors (see below), whose sum is σ = 1159644230640. Its totient is φ = 1152592705792.

The previous prime is 1156117757801. The next prime is 1156117757857. The reversal of 1156117757831 is 1387577116511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1156117757831 is a prime.

It is a super-2 number, since 2×1156117757831² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156117757801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286285 + ... + 1991673.

It is an arithmetic number, because the mean of its divisors is an integer number (144955528830).

Almost surely, 2^{1156117757831} is an apocalyptic number.

1156117757831 is a deficient number, since it is larger than the sum of its proper divisors (3526472809).

1156117757831 is an equidigital number, since it uses as much as digits as its factorization.

1156117757831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710385.

The product of its digits is 1234800, while the sum is 53.

The spelling of 1156117757831 in words is "one trillion, one hundred fifty-six billion, one hundred seventeen million, seven hundred fifty-seven thousand, eight hundred thirty-one".