52640640000 has 1320 divisors, whose sum is σ = 221133152240. Its totient is φ = 11943936000.

The previous prime is 52640639977. The next prime is 52640640043. The reversal of 52640640000 is 4604625.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1422719982 + ... + 1422720018.

Almost surely, 2^52640640000 is an apocalyptic number.

52640640000 is a gapful number since it is divisible by the number (50) 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 52640640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110566576120).

52640640000 is an abundant number, since it is smaller than the sum of its proper divisors (168492512240).

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

52640640000 is a wasteful number, since it uses less digits than its factorization.

52640640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 52640640000 in words is "fifty-two billion, six hundred forty million, six hundred forty thousand".