52639421608 has 8 divisors (see below), whose sum is σ = 98698915530. Its totient is φ = 26319710800.

The previous prime is 52639421579. The next prime is 52639421609. The reversal of 52639421608 is 80612493625.

It can be written as a sum of positive squares in only one way, i.e., 52304604804 + 334816804 = 228702^2 + 18298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (52639421609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3289963843 + ... + 3289963858.

Almost surely, 2^52639421608 is an apocalyptic number.

It is an amenable number.

52639421608 is a deficient number, since it is larger than the sum of its proper divisors (46059493922).

52639421608 is a wasteful number, since it uses less digits than its factorization.

52639421608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579927707 (or 6579927703 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 52639421608 in words is "fifty-two billion, six hundred thirty-nine million, four hundred twenty-one thousand, six hundred eight".