2157814636131 has 48 divisors (see below), whose sum is σ = 3616618021632. Its totient is φ = 1120189899840.

The previous prime is 2157814636127. The next prime is 2157814636139. The reversal of 2157814636131 is 1316364187512.

It is not a de Polignac number, because 2157814636131 - 2² = 2157814636127 is a prime.

It is a super-2 number, since 2×2157814636131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2157814636139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3509320 + ... + 4078106.

It is an arithmetic number, because the mean of its divisors is an integer number (75346208784).

Almost surely, 2^{2157814636131} is an apocalyptic number.

2157814636131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2157814636131 is a deficient number, since it is larger than the sum of its proper divisors (1458803385501).

2157814636131 is a wasteful number, since it uses less digits than its factorization.

2157814636131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570312 (or 570301 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 2157814636131 in words is "two trillion, one hundred fifty-seven billion, eight hundred fourteen million, six hundred thirty-six thousand, one hundred thirty-one".