52687136845 has 16 divisors (see below), whose sum is σ = 72301518720. Its totient is φ = 36105885504.

The previous prime is 52687136839. The next prime is 52687136917. The reversal of 52687136845 is 54863178625.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52687136845 - 2³ = 52687136837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410175 + ... + 523084.

It is an arithmetic number, because the mean of its divisors is an integer number (4518844920).

Almost surely, 2^52687136845 is an apocalyptic number.

It is an amenable number.

52687136845 is a deficient number, since it is larger than the sum of its proper divisors (19614381875).

52687136845 is a wasteful number, since it uses less digits than its factorization.

52687136845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934884.

The product of its digits is 9676800, while the sum is 55.

The spelling of 52687136845 in words is "fifty-two billion, six hundred eighty-seven million, one hundred thirty-six thousand, eight hundred forty-five".