64628427355080 has 192 divisors, whose sum is σ = 206138343096000. Its totient is φ = 16190232984576.

The previous prime is 64628427355021. The next prime is 64628427355097. The reversal of 64628427355080 is 8055372482646.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2018710 + ... + 11546949.

It is an arithmetic number, because the mean of its divisors is an integer number (1073637203625).

Almost surely, 2^{64628427355080} is an apocalyptic number.

64628427355080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64628427355080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103069171548000).

64628427355080 is an abundant number, since it is smaller than the sum of its proper divisors (141509915740920).

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

64628427355080 is a wasteful number, since it uses less digits than its factorization.

64628427355080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13565776 (or 13565735 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 60.

The spelling of 64628427355080 in words is "sixty-four trillion, six hundred twenty-eight billion, four hundred twenty-seven million, three hundred fifty-five thousand, eighty".