27187231696 has 40 divisors (see below), whose sum is σ = 55469842560. Its totient is φ = 12883280256.

The previous prime is 27187231619. The next prime is 27187231697. The reversal of 27187231696 is 69613278172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27187231697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298780 + ... + 379003.

It is an arithmetic number, because the mean of its divisors is an integer number (1386746064).

Almost surely, 2^27187231696 is an apocalyptic number.

It is an amenable number.

27187231696 is an abundant number, since it is smaller than the sum of its proper divisors (28282610864).

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

27187231696 is a wasteful number, since it uses less digits than its factorization.

27187231696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677923 (or 677917 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The spelling of 27187231696 in words is "twenty-seven billion, one hundred eighty-seven million, two hundred thirty-one thousand, six hundred ninety-six".