538863887680 has 56 divisors (see below), whose sum is σ = 1290586930632. Its totient is φ = 214299604992.

The previous prime is 538863887671. The next prime is 538863887707. The reversal of 538863887680 is 86788368835.

It can be written as a sum of positive squares in 4 ways, for example, as 115458603264 + 423405284416 = 339792^2 + 650696^2 .

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, 4811547 + ... + 4922266.

Almost surely, 2^538863887680 is an apocalyptic number.

It is an amenable number.

538863887680 is an abundant number, since it is smaller than the sum of its proper divisors (751723042952).

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

538863887680 is a wasteful number, since it uses less digits than its factorization.

538863887680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734003 (or 9733993 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 70.

The spelling of 538863887680 in words is "five hundred thirty-eight billion, eight hundred sixty-three million, eight hundred eighty-seven thousand, six hundred eighty".