2156312737874 has 16 divisors (see below), whose sum is σ = 3235887144000. Its totient is φ = 1077683792304.

The previous prime is 2156312737871. The next prime is 2156312737877. The reversal of 2156312737874 is 4787372136512.

It is an interprime number because it is at equal distance from previous prime (2156312737871) and next prime (2156312737877).

It is not an unprimeable number, because it can be changed into a prime (2156312737871) 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, 53754677 + ... + 53794775.

It is an arithmetic number, because the mean of its divisors is an integer number (202242946500).

Almost surely, 2^{2156312737874} is an apocalyptic number.

2156312737874 is a deficient number, since it is larger than the sum of its proper divisors (1079574406126).

2156312737874 is a wasteful number, since it uses less digits than its factorization.

2156312737874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51217.

The product of its digits is 11854080, while the sum is 56.

The spelling of 2156312737874 in words is "two trillion, one hundred fifty-six billion, three hundred twelve million, seven hundred thirty-seven thousand, eight hundred seventy-four".