647604348320 has 96 divisors (see below), whose sum is σ = 1566415464768. Its totient is φ = 252876976128.

The previous prime is 647604348229. The next prime is 647604348337. The reversal of 647604348320 is 23843406746.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12819752 + ... + 12870168.

It is an arithmetic number, because the mean of its divisors is an integer number (16316827758).

Almost surely, 2^647604348320 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 647604348320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783207732384).

647604348320 is an abundant number, since it is smaller than the sum of its proper divisors (918811116448).

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

647604348320 is a wasteful number, since it uses less digits than its factorization.

647604348320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52342 (or 52334 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 647604348320 in words is "six hundred forty-seven billion, six hundred four million, three hundred forty-eight thousand, three hundred twenty".