538668520187 has 16 divisors (see below), whose sum is σ = 642620160000. Its totient is φ = 441801328320.

The previous prime is 538668520157. The next prime is 538668520253. The reversal of 538668520187 is 781025866835.

It is a cyclic number.

It is not a de Polignac number, because 538668520187 - 2¹⁸ = 538668258043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538668520157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13926437 + ... + 13965062.

It is an arithmetic number, because the mean of its divisors is an integer number (40163760000).

Almost surely, 2^538668520187 is an apocalyptic number.

538668520187 is a deficient number, since it is larger than the sum of its proper divisors (103951639813).

538668520187 is a wasteful number, since it uses less digits than its factorization.

538668520187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27891626.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 538668520187 in words is "five hundred thirty-eight billion, six hundred sixty-eight million, five hundred twenty thousand, one hundred eighty-seven".