87486991524 has 27 divisors (see below), whose sum is σ = 221152159137. Its totient is φ = 29161738944.

The previous prime is 87486991511. The next prime is 87486991561. The reversal of 87486991524 is 42519968478.

The square root of 87486991524 is 295782.

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

87486991524 is a `hidden beast` number, since 8 + 7 + 48 + 69 + 9 + 1 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2204302500 + 85282689024 = 46950^2 + 292032^2 .

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, 1750044 + ... + 1799340.

Almost surely, 2^87486991524 is an apocalyptic number.

87486991524 is the 295782-nd square number.

It is an amenable number.

87486991524 is an abundant number, since it is smaller than the sum of its proper divisors (133665167613).

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

87486991524 is an frugal number, since it uses more digits than its factorization.

87486991524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98604 (or 49302 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 87486991524 in words is "eighty-seven billion, four hundred eighty-six million, nine hundred ninety-one thousand, five hundred twenty-four".