87418632740 has 24 divisors (see below), whose sum is σ = 186588625272. Its totient is φ = 34394215680.

The previous prime is 87418632733. The next prime is 87418632751. The reversal of 87418632740 is 4723681478.

It can be written as a sum of positive squares in 4 ways, for example, as 5214861796 + 82203770944 = 72214^2 + 286712^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35826089 + ... + 35828528.

It is an arithmetic number, because the mean of its divisors is an integer number (7774526053).

Almost surely, 2^87418632740 is an apocalyptic number.

It is an amenable number.

87418632740 is an abundant number, since it is smaller than the sum of its proper divisors (99169992532).

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

87418632740 is a wasteful number, since it uses less digits than its factorization.

87418632740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71654687 (or 71654685 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 87418632740 in words is "eighty-seven billion, four hundred eighteen million, six hundred thirty-two thousand, seven hundred forty".