27625536840 has 64 divisors (see below), whose sum is σ = 90410852160. Its totient is φ = 6697099520.

The previous prime is 27625536817. The next prime is 27625536859. The reversal of 27625536840 is 4863552672.

It is a self number, because there is not a number n which added to its sum of digits gives 27625536840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10462899 + ... + 10465538.

It is an arithmetic number, because the mean of its divisors is an integer number (1412669565).

Almost surely, 2^27625536840 is an apocalyptic number.

27625536840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27625536840 is an abundant number, since it is smaller than the sum of its proper divisors (62785315320).

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

27625536840 is a wasteful number, since it uses less digits than its factorization.

27625536840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20928462 (or 20928458 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

It can be divided in two parts, 27625 and 536840, that added together give a palindrome (564465).

The spelling of 27625536840 in words is "twenty-seven billion, six hundred twenty-five million, five hundred thirty-six thousand, eight hundred forty".