27498438688 has 96 divisors (see below), whose sum is σ = 63019192320. Its totient is φ = 11567074560.

The previous prime is 27498438677. The next prime is 27498438703. The reversal of 27498438688 is 88683489472.

It is a super-2 number, since 2×27498438688² (a number of 22 digits) contains 22 as substring.

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, 11404203 + ... + 11406613.

It is an arithmetic number, because the mean of its divisors is an integer number (656449920).

Almost surely, 2^27498438688 is an apocalyptic number.

27498438688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27498438688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31509596160).

27498438688 is an abundant number, since it is smaller than the sum of its proper divisors (35520753632).

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

27498438688 is a wasteful number, since it uses less digits than its factorization.

27498438688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350 (or 3342 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 67.

The spelling of 27498438688 in words is "twenty-seven billion, four hundred ninety-eight million, four hundred thirty-eight thousand, six hundred eighty-eight".