87381448663456 has 24 divisors (see below), whose sum is σ = 176681746708740. Its totient is φ = 42509893943808.

The previous prime is 87381448663391. The next prime is 87381448663463. The reversal of 87381448663456 is 65436684418378.

It can be written as a sum of positive squares in 2 ways, for example, as 86632981443856 + 748467219600 = 9307684^2 + 865140^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36900948421 + ... + 36900950788.

Almost surely, 2^{87381448663456} is an apocalyptic number.

It is an amenable number.

87381448663456 is an abundant number, since it is smaller than the sum of its proper divisors (89300298045284).

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

87381448663456 is a wasteful number, since it uses less digits than its factorization.

87381448663456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73801899256 (or 73801899248 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 73.

The spelling of 87381448663456 in words is "eighty-seven trillion, three hundred eighty-one billion, four hundred forty-eight million, six hundred sixty-three thousand, four hundred fifty-six".