87575840424 has 24 divisors (see below), whose sum is σ = 237184568010. Its totient is φ = 29191946784.

The previous prime is 87575840419. The next prime is 87575840447. The reversal of 87575840424 is 42404857578.

87575840424 is a `hidden beast` number, since 8 + 7 + 57 + 584 + 0 + 4 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62741232324 + 24834608100 = 250482^2 + 157590^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 608165487 + ... + 608165630.

Almost surely, 2^87575840424 is an apocalyptic number.

It is an amenable number.

87575840424 is an abundant number, since it is smaller than the sum of its proper divisors (149608727586).

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

87575840424 is a wasteful number, since it uses less digits than its factorization.

87575840424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216331129 (or 1216331122 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 54.

The spelling of 87575840424 in words is "eighty-seven billion, five hundred seventy-five million, eight hundred forty thousand, four hundred twenty-four".