84977452131 has 32 divisors (see below), whose sum is σ = 136207180032. Its totient is φ = 46434245760.

The previous prime is 84977452117. The next prime is 84977452201. The reversal of 84977452131 is 13125477948.

It is not a de Polignac number, because 84977452131 - 2⁵ = 84977452099 is a prime.

It is a super-2 number, since 2×84977452131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84977452331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2284840 + ... + 2321733.

It is an arithmetic number, because the mean of its divisors is an integer number (4256474376).

Almost surely, 2^84977452131 is an apocalyptic number.

84977452131 is a deficient number, since it is larger than the sum of its proper divisors (51229727901).

84977452131 is a wasteful number, since it uses less digits than its factorization.

84977452131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606643.

The product of its digits is 1693440, while the sum is 51.

The spelling of 84977452131 in words is "eighty-four billion, nine hundred seventy-seven million, four hundred fifty-two thousand, one hundred thirty-one".