53581367808 has 120 divisors (see below), whose sum is σ = 160367215008. Its totient is φ = 17860414464.

The previous prime is 53581367783. The next prime is 53581367837. The reversal of 53581367808 is 80876318535.

53581367808 is a `hidden beast` number, since 53 + 581 + 3 + 6 + 7 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90916 + ... + 339747.

Almost surely, 2^53581367808 is an apocalyptic number.

It is an amenable number.

53581367808 is an abundant number, since it is smaller than the sum of its proper divisors (106785847200).

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

53581367808 is an frugal number, since it uses more digits than its factorization.

53581367808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430696 (or 430668 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 53581367808 in words is "fifty-three billion, five hundred eighty-one million, three hundred sixty-seven thousand, eight hundred eight".