27256026728 has 32 divisors (see below), whose sum is σ = 58439876160. Its totient is φ = 11674333440.

The previous prime is 27256026673. The next prime is 27256026731. The reversal of 27256026728 is 82762065272.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44753 + ... + 237728.

It is an arithmetic number, because the mean of its divisors is an integer number (1826246130).

Almost surely, 2^27256026728 is an apocalyptic number.

27256026728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27256026728 is an abundant number, since it is smaller than the sum of its proper divisors (31183849432).

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

27256026728 is a wasteful number, since it uses less digits than its factorization.

27256026728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284217 (or 284213 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 27256026728 in words is "twenty-seven billion, two hundred fifty-six million, twenty-six thousand, seven hundred twenty-eight".