53372139408 has 320 divisors, whose sum is σ = 177160089600. Its totient is φ = 15069680640.

The previous prime is 53372139397. The next prime is 53372139413. The reversal of 53372139408 is 80493127335.

53372139408 is a `hidden beast` number, since 533 + 7 + 21 + 3 + 94 + 0 + 8 = 666.

53372139408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148668733 + ... + 148669091.

It is an arithmetic number, because the mean of its divisors is an integer number (553625280).

Almost surely, 2^53372139408 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 53372139408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88580044800).

53372139408 is an abundant number, since it is smaller than the sum of its proper divisors (123787950192).

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

53372139408 is a wasteful number, since it uses less digits than its factorization.

53372139408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 53372139408 in words is "fifty-three billion, three hundred seventy-two million, one hundred thirty-nine thousand, four hundred eight".