27979474608 has 240 divisors, whose sum is σ = 84078618624. Its totient is φ = 8664606720.

The previous prime is 27979474583. The next prime is 27979474639. The reversal of 27979474608 is 80647497972.

It is an unprimeable number.

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, 31758328 + ... + 31759208.

Almost surely, 2^27979474608 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 27979474608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42039309312).

27979474608 is an abundant number, since it is smaller than the sum of its proper divisors (56099144016).

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

27979474608 is a wasteful number, since it uses less digits than its factorization.

27979474608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 27979474608 in words is "twenty-seven billion, nine hundred seventy-nine million, four hundred seventy-four thousand, six hundred eight".