685238100084 has 24 divisors (see below), whose sum is σ = 1776543222720. Its totient is φ = 228412699992.

The previous prime is 685238100049. The next prime is 685238100091. The reversal of 685238100084 is 480001832586.

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, 3172398504 + ... + 3172398719.

It is an arithmetic number, because the mean of its divisors is an integer number (74022634280).

Almost surely, 2^685238100084 is an apocalyptic number.

It is an amenable number.

685238100084 is an abundant number, since it is smaller than the sum of its proper divisors (1091305122636).

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

685238100084 is a wasteful number, since it uses less digits than its factorization.

685238100084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344797236 (or 6344797228 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 685238100084 in words is "six hundred eighty-five billion, two hundred thirty-eight million, one hundred thousand, eighty-four".