27915040164 has 24 divisors (see below), whose sum is σ = 71056466208. Its totient is φ = 8459103040.

The previous prime is 27915040147. The next prime is 27915040171. The reversal of 27915040164 is 46104051972.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105738657 + ... + 105738920.

It is an arithmetic number, because the mean of its divisors is an integer number (2960686092).

Almost surely, 2^27915040164 is an apocalyptic number.

It is an amenable number.

27915040164 is an abundant number, since it is smaller than the sum of its proper divisors (43141426044).

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

27915040164 is a wasteful number, since it uses less digits than its factorization.

27915040164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211477595 (or 211477593 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 27915040164 in words is "twenty-seven billion, nine hundred fifteen million, forty thousand, one hundred sixty-four".