52420739188 has 12 divisors (see below), whose sum is σ = 91743466500. Its totient is φ = 26208320192.

The previous prime is 52420739171. The next prime is 52420739207. The reversal of 52420739188 is 88193702425.

It can be written as a sum of positive squares in 2 ways, for example, as 16030598544 + 36390140644 = 126612^2 + 190762^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454063 + ... + 557686.

It is an arithmetic number, because the mean of its divisors is an integer number (7645288875).

Almost surely, 2^52420739188 is an apocalyptic number.

It is an amenable number.

52420739188 is a deficient number, since it is larger than the sum of its proper divisors (39322727312).

52420739188 is a wasteful number, since it uses less digits than its factorization.

52420739188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024706 (or 1024704 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 52420739188 in words is "fifty-two billion, four hundred twenty million, seven hundred thirty-nine thousand, one hundred eighty-eight".