27309257108 has 24 divisors (see below), whose sum is σ = 54623288832. Its totient is φ = 11702944224.

The previous prime is 27309257083. The next prime is 27309257111. The reversal of 27309257108 is 80175290372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345341 + ... + 416987.

It is an arithmetic number, because the mean of its divisors is an integer number (2275970368).

Almost surely, 2^27309257108 is an apocalyptic number.

27309257108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27309257108 is an abundant number, since it is smaller than the sum of its proper divisors (27314031724).

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

27309257108 is a wasteful number, since it uses less digits than its factorization.

27309257108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85271 (or 85269 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 27309257108 in words is "twenty-seven billion, three hundred nine million, two hundred fifty-seven thousand, one hundred eight".