27887580002556 has 96 divisors (see below), whose sum is σ = 75449350394880. Its totient is φ = 8891139483072.

The previous prime is 27887580002537. The next prime is 27887580002567. The reversal of 27887580002556 is 65520008578872.

It is a happy number.

27887580002556 is a `hidden beast` number, since 2 + 7 + 8 + 8 + 75 + 8 + 0 + 0 + 0 + 2 + 556 = 666.

It is a super-2 number, since 2×27887580002556² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27887580002493 and 27887580002502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40588185 + ... + 41269551.

It is an arithmetic number, because the mean of its divisors is an integer number (785930733280).

Almost surely, 2^{27887580002556} is an apocalyptic number.

It is an amenable number.

27887580002556 is an abundant number, since it is smaller than the sum of its proper divisors (47561770392324).

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

27887580002556 is a wasteful number, since it uses less digits than its factorization.

27887580002556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697880 (or 697872 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 63.

The spelling of 27887580002556 in words is "twenty-seven trillion, eight hundred eighty-seven billion, five hundred eighty million, two thousand, five hundred fifty-six".