678907547136 has 1200 divisors, whose sum is σ = 2623565831040. Its totient is φ = 173067632640.

The previous prime is 678907547113. The next prime is 678907547177. The reversal of 678907547136 is 631745709876.

678907547136 is a `hidden beast` number, since 6 + 7 + 8 + 90 + 75 + 471 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 818947170 + ... + 818947998.

Almost surely, 2^678907547136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678907547136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311782915520).

678907547136 is an abundant number, since it is smaller than the sum of its proper divisors (1944658283904).

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

678907547136 is a wasteful number, since it uses less digits than its factorization.

678907547136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 678907547136 in words is "six hundred seventy-eight billion, nine hundred seven million, five hundred forty-seven thousand, one hundred thirty-six".