53887590868 has 12 divisors (see below), whose sum is σ = 94306059540. Its totient is φ = 26943002432.

The previous prime is 53887590839. The next prime is 53887590877. The reversal of 53887590868 is 86809578835.

It can be written as a sum of positive squares in 2 ways, for example, as 28142746564 + 25744844304 = 167758^2 + 160452^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29371 + ... + 329602.

It is an arithmetic number, because the mean of its divisors is an integer number (7858838295).

Almost surely, 2^53887590868 is an apocalyptic number.

It is an amenable number.

53887590868 is a deficient number, since it is larger than the sum of its proper divisors (40418468672).

53887590868 is a wasteful number, since it uses less digits than its factorization.

53887590868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396506 (or 396504 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 67.

The spelling of 53887590868 in words is "fifty-three billion, eight hundred eighty-seven million, five hundred ninety thousand, eight hundred sixty-eight".