87167838564 has 27 divisors (see below), whose sum is σ = 220345403187. Its totient is φ = 29055355704.

The previous prime is 87167838557. The next prime is 87167838581. The reversal of 87167838564 is 46583876178.

The square root of 87167838564 is 295242.

It is a perfect power (a square), and thus also a powerful number.

87167838564 is a `hidden beast` number, since 8 + 7 + 1 + 67 + 8 + 3 + 8 + 564 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1746849 + ... + 1796055.

Almost surely, 2^87167838564 is an apocalyptic number.

87167838564 is the 295242-nd square number.

It is an amenable number.

87167838564 is an abundant number, since it is smaller than the sum of its proper divisors (133177564623).

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

87167838564 is an frugal number, since it uses more digits than its factorization.

87167838564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98424 (or 49212 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 87167838564 in words is "eighty-seven billion, one hundred sixty-seven million, eight hundred thirty-eight thousand, five hundred sixty-four".