27307457988 has 12 divisors (see below), whose sum is σ = 63717402000. Its totient is φ = 9102485992.

The previous prime is 27307457929. The next prime is 27307458047. The reversal of 27307457988 is 88975470372.

It is an interprime number because it is at equal distance from previous prime (27307457929) and next prime (27307458047).

It is a tau number, because it is divible by the number of its divisors (12).

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, 1137810738 + ... + 1137810761.

It is an arithmetic number, because the mean of its divisors is an integer number (5309783500).

Almost surely, 2^27307457988 is an apocalyptic number.

It is an amenable number.

27307457988 is an abundant number, since it is smaller than the sum of its proper divisors (36409944012).

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

27307457988 is a wasteful number, since it uses less digits than its factorization.

27307457988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275621506 (or 2275621504 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 27307457988 in words is "twenty-seven billion, three hundred seven million, four hundred fifty-seven thousand, nine hundred eighty-eight".