27159880977 has 48 divisors (see below), whose sum is σ = 40649102208. Its totient is φ = 17463882240.

The previous prime is 27159880967. The next prime is 27159880997. The reversal of 27159880977 is 77908895172.

It is not a de Polignac number, because 27159880977 - 2⁷ = 27159880849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27159880907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13599343 + ... + 13601339.

It is an arithmetic number, because the mean of its divisors is an integer number (846856296).

Almost surely, 2^27159880977 is an apocalyptic number.

It is an amenable number.

27159880977 is a deficient number, since it is larger than the sum of its proper divisors (13489221231).

27159880977 is a wasteful number, since it uses less digits than its factorization.

27159880977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 63.

The spelling of 27159880977 in words is "twenty-seven billion, one hundred fifty-nine million, eight hundred eighty thousand, nine hundred seventy-seven".