52621214640 has 80 divisors (see below), whose sum is σ = 163203134688. Its totient is φ = 14025668608.

The previous prime is 52621214623. The next prime is 52621214663. The reversal of 52621214640 is 4641212625.

It is a tau number, because it is divible by the number of its divisors (80).

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, 465802 + ... + 567638.

Almost surely, 2^52621214640 is an apocalyptic number.

It is an amenable number.

52621214640 is an abundant number, since it is smaller than the sum of its proper divisors (110581920048).

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

52621214640 is a wasteful number, since it uses less digits than its factorization.

52621214640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104006 (or 104000 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 52621214640 in words is "fifty-two billion, six hundred twenty-one million, two hundred fourteen thousand, six hundred forty".