647327928960 has 512 divisors, whose sum is σ = 2339701459200. Its totient is φ = 169104900096.

The previous prime is 647327928953. The next prime is 647327928997. The reversal of 647327928960 is 69829723746.

647327928960 is a `hidden beast` number, since 6 + 473 + 2 + 79 + 2 + 8 + 96 + 0 = 666.

It is a super-2 number, since 2×647327928960² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223446232 + ... + 223449128.

Almost surely, 2^647327928960 is an apocalyptic number.

647327928960 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 647327928960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169850729600).

647327928960 is an abundant number, since it is smaller than the sum of its proper divisors (1692373530240).

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

647327928960 is a wasteful number, since it uses less digits than its factorization.

647327928960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 63.

The spelling of 647327928960 in words is "six hundred forty-seven billion, three hundred twenty-seven million, nine hundred twenty-eight thousand, nine hundred sixty".