27691915080 has 32 divisors (see below), whose sum is σ = 83075745600. Its totient is φ = 7384510656.

The previous prime is 27691915063. The next prime is 27691915099. The reversal of 27691915080 is 8051919672.

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, 115382860 + ... + 115383099.

It is an arithmetic number, because the mean of its divisors is an integer number (2596117050).

Almost surely, 2^27691915080 is an apocalyptic number.

27691915080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27691915080 is an abundant number, since it is smaller than the sum of its proper divisors (55383830520).

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

27691915080 is a wasteful number, since it uses less digits than its factorization.

27691915080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230765973 (or 230765969 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 27691915080 in words is "twenty-seven billion, six hundred ninety-one million, nine hundred fifteen thousand, eighty".