27498136688 has 60 divisors (see below), whose sum is σ = 61643632680. Its totient is φ = 11841287040.

The previous prime is 27498136681. The next prime is 27498136711. The reversal of 27498136688 is 88663189472.

It is a super-2 number, since 2×27498136688² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27498136688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27498136681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336995 + ... + 410562.

It is an arithmetic number, because the mean of its divisors is an integer number (1027393878).

Almost surely, 2^27498136688 is an apocalyptic number.

It is an amenable number.

27498136688 is an abundant number, since it is smaller than the sum of its proper divisors (34145495992).

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

27498136688 is a wasteful number, since it uses less digits than its factorization.

27498136688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747606 (or 747589 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 62.

The spelling of 27498136688 in words is "twenty-seven billion, four hundred ninety-eight million, one hundred thirty-six thousand, six hundred eighty-eight".