27790032984 has 32 divisors (see below), whose sum is σ = 79400094720. Its totient is φ = 7940009376.

The previous prime is 27790032973. The next prime is 27790032989. The reversal of 27790032984 is 48923009772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27790032989) 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, 82708264 + ... + 82708599.

It is an arithmetic number, because the mean of its divisors is an integer number (2481252960).

Almost surely, 2^27790032984 is an apocalyptic number.

27790032984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27790032984 is an abundant number, since it is smaller than the sum of its proper divisors (51610061736).

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

27790032984 is a wasteful number, since it uses less digits than its factorization.

27790032984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165416879 (or 165416875 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 27790032984 in words is "twenty-seven billion, seven hundred ninety million, thirty-two thousand, nine hundred eighty-four".