84657830131 has 24 divisors (see below), whose sum is σ = 102359874960. Its totient is φ = 69751910592.

The previous prime is 84657830113. The next prime is 84657830161. The reversal of 84657830131 is 13103875648.

It is not a de Polignac number, because 84657830131 - 2¹⁷ = 84657699059 is a prime.

It is a super-2 number, since 2×84657830131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84657830161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130816 + ... + 431773.

It is an arithmetic number, because the mean of its divisors is an integer number (4264994790).

Almost surely, 2^84657830131 is an apocalyptic number.

84657830131 is a deficient number, since it is larger than the sum of its proper divisors (17702044829).

84657830131 is a wasteful number, since it uses less digits than its factorization.

84657830131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562723 (or 562716 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 84657830131 in words is "eighty-four billion, six hundred fifty-seven million, eight hundred thirty thousand, one hundred thirty-one".