27115236456 has 128 divisors (see below), whose sum is σ = 84572328960. Its totient is φ = 7038144000.

The previous prime is 27115236431. The next prime is 27115236479. The reversal of 27115236456 is 65463251172.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3324175 + ... + 3332321.

It is an arithmetic number, because the mean of its divisors is an integer number (660721320).

Almost surely, 2^27115236456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27115236456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42286164480).

27115236456 is an abundant number, since it is smaller than the sum of its proper divisors (57457092504).

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

27115236456 is a wasteful number, since it uses less digits than its factorization.

27115236456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975 (or 9971 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The spelling of 27115236456 in words is "twenty-seven billion, one hundred fifteen million, two hundred thirty-six thousand, four hundred fifty-six".