27928644352 has 36 divisors (see below), whose sum is σ = 63712224016. Its totient is φ = 11969418240.

The previous prime is 27928644349. The next prime is 27928644371. The reversal of 27928644352 is 25344682972.

It is a self number, because there is not a number n which added to its sum of digits gives 27928644352.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7790799 + ... + 7794382.

Almost surely, 2^27928644352 is an apocalyptic number.

It is an amenable number.

27928644352 is an abundant number, since it is smaller than the sum of its proper divisors (35783579664).

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

27928644352 is an equidigital number, since it uses as much as digits as its factorization.

27928644352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15585204 (or 15585190 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The spelling of 27928644352 in words is "twenty-seven billion, nine hundred twenty-eight million, six hundred forty-four thousand, three hundred fifty-two".