684927289080 has 96 divisors (see below), whose sum is σ = 2297820620160. Its totient is φ = 176755426560.

The previous prime is 684927289051. The next prime is 684927289087. The reversal of 684927289080 is 80982729486.

684927289080 is a `hidden beast` number, since 68 + 492 + 7 + 2 + 8 + 9 + 0 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 684927288999 and 684927289017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684927289087) 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, 30675547 + ... + 30697866.

It is an arithmetic number, because the mean of its divisors is an integer number (23935631460).

Almost surely, 2^684927289080 is an apocalyptic number.

684927289080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

684927289080 is an abundant number, since it is smaller than the sum of its proper divisors (1612893331080).

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

684927289080 is a wasteful number, since it uses less digits than its factorization.

684927289080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61373461 (or 61373454 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 684927289080 in words is "six hundred eighty-four billion, nine hundred twenty-seven million, two hundred eighty-nine thousand, eighty".