27256005680 has 40 divisors (see below), whose sum is σ = 63378671184. Its totient is φ = 10900947200.

The previous prime is 27256005661. The next prime is 27256005683. The reversal of 27256005680 is 8650065272.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (27256005683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738875 + ... + 774885.

Almost surely, 2^27256005680 is an apocalyptic number.

27256005680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27256005680 is an abundant number, since it is smaller than the sum of its proper divisors (36122665504).

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

27256005680 is a wasteful number, since it uses less digits than its factorization.

27256005680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45485 (or 45479 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 27256005680 in words is "twenty-seven billion, two hundred fifty-six million, five thousand, six hundred eighty".