84157937664 has 96 divisors (see below), whose sum is σ = 234121829760. Its totient is φ = 26832920576.

The previous prime is 84157937627. The next prime is 84157937713. The reversal of 84157937664 is 46673975148.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 84157937598 and 84157937607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156462 + ... + 439085.

It is an arithmetic number, because the mean of its divisors is an integer number (2438769060).

Almost surely, 2^84157937664 is an apocalyptic number.

It is an amenable number.

84157937664 is an abundant number, since it is smaller than the sum of its proper divisors (149963892096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84157937664 is a wasteful number, since it uses less digits than its factorization.

84157937664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595595 (or 595575 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 84157937664 in words is "eighty-four billion, one hundred fifty-seven million, nine hundred thirty-seven thousand, six hundred sixty-four".