27712929408 has 64 divisors (see below), whose sum is σ = 77486829600. Its totient is φ = 8751449088.

The previous prime is 27712929407. The next prime is 27712929463. The reversal of 27712929408 is 80492921772.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (27712929403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1891891 + ... + 1906482.

Almost surely, 2^27712929408 is an apocalyptic number.

It is an amenable number.

27712929408 is an abundant number, since it is smaller than the sum of its proper divisors (49773900192).

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

27712929408 is a wasteful number, since it uses less digits than its factorization.

27712929408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798409 (or 3798397 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 27712929408 in words is "twenty-seven billion, seven hundred twelve million, nine hundred twenty-nine thousand, four hundred eight".