87400632713634 has 12 divisors (see below), whose sum is σ = 189368037546246. Its totient is φ = 29133544237872.

The previous prime is 87400632713621. The next prime is 87400632713671. The reversal of 87400632713634 is 43631723600478.

87400632713634 is a `hidden beast` number, since 8 + 7 + 4 + 0 + 0 + 6 + 3 + 271 + 363 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 79427932695225 + 7972700018409 = 8912235^2 + 2823597^2 .

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, 2427795353139 + ... + 2427795353174.

Almost surely, 2^{87400632713634} is an apocalyptic number.

87400632713634 is an abundant number, since it is smaller than the sum of its proper divisors (101967404832612).

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

87400632713634 is a wasteful number, since it uses less digits than its factorization.

87400632713634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855590706321 (or 4855590706318 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 87400632713634 in words is "eighty-seven trillion, four hundred billion, six hundred thirty-two million, seven hundred thirteen thousand, six hundred thirty-four".