678916697760 has 192 divisors, whose sum is σ = 2715666912000. Its totient is φ = 155180952576.

The previous prime is 678916697749. The next prime is 678916697779. The reversal of 678916697760 is 67796619876.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11195235 + ... + 11255714.

It is an arithmetic number, because the mean of its divisors is an integer number (14144098500).

Almost surely, 2^678916697760 is an apocalyptic number.

678916697760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678916697760 is an abundant number, since it is smaller than the sum of its proper divisors (2036750214240).

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

678916697760 is a wasteful number, since it uses less digits than its factorization.

678916697760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22450980 (or 22450966 counting only the distinct ones).

The product of its (nonzero) digits is 288054144, while the sum is 72.

The spelling of 678916697760 in words is "six hundred seventy-eight billion, nine hundred sixteen million, six hundred ninety-seven thousand, seven hundred sixty".