53381889972 has 24 divisors (see below), whose sum is σ = 138397492800. Its totient is φ = 17793963288.

The previous prime is 53381889961. The next prime is 53381890007. The reversal of 53381889972 is 27998818335.

53381889972 is a `hidden beast` number, since 533 + 8 + 1 + 8 + 8 + 9 + 97 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247138272 + ... + 247138487.

It is an arithmetic number, because the mean of its divisors is an integer number (5766562200).

Almost surely, 2^53381889972 is an apocalyptic number.

It is an amenable number.

53381889972 is an abundant number, since it is smaller than the sum of its proper divisors (85015602828).

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

53381889972 is a wasteful number, since it uses less digits than its factorization.

53381889972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494276772 (or 494276764 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 53381889972 in words is "fifty-three billion, three hundred eighty-one million, eight hundred eighty-nine thousand, nine hundred seventy-two".