538511806543680 has 112 divisors (see below), whose sum is σ = 1899749984226240. Its totient is φ = 143603148409344.

The previous prime is 538511806543657. The next prime is 538511806543723. The reversal of 538511806543680 is 86345608115835.

538511806543680 is a `hidden beast` number, since 5 + 3 + 8 + 5 + 1 + 1 + 8 + 0 + 6 + 543 + 6 + 80 = 666.

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, 31163869054 + ... + 31163886333.

Almost surely, 2^{538511806543680} is an apocalyptic number.

It is an amenable number.

538511806543680 is an abundant number, since it is smaller than the sum of its proper divisors (1361238177682560).

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

538511806543680 is a wasteful number, since it uses less digits than its factorization.

538511806543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62327755413 (or 62327755397 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 63.

The spelling of 538511806543680 in words is "five hundred thirty-eight trillion, five hundred eleven billion, eight hundred six million, five hundred forty-three thousand, six hundred eighty".