2156312770675 has 72 divisors (see below), whose sum is σ = 3297978134640. Its totient is φ = 1390565836800.

The previous prime is 2156312770643. The next prime is 2156312770691. The reversal of 2156312770675 is 5760772136512.

It is not a de Polignac number, because 2156312770675 - 2⁵ = 2156312770643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2850555 + ... + 3526795.

It is an arithmetic number, because the mean of its divisors is an integer number (45805251870).

Almost surely, 2^{2156312770675} is an apocalyptic number.

2156312770675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2156312770675 is a deficient number, since it is larger than the sum of its proper divisors (1141665363965).

2156312770675 is a wasteful number, since it uses less digits than its factorization.

2156312770675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676421 (or 676409 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 2156312770675 in words is "two trillion, one hundred fifty-six billion, three hundred twelve million, seven hundred seventy thousand, six hundred seventy-five".