27887053915 has 32 divisors (see below), whose sum is σ = 39969801216. Its totient is φ = 18262780800.

The previous prime is 27887053913. The next prime is 27887053933. The reversal of 27887053915 is 51935078872.

It is not a de Polignac number, because 27887053915 - 2¹ = 27887053913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27887053913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499140 + ... + 552190.

It is an arithmetic number, because the mean of its divisors is an integer number (1249056288).

Almost surely, 2^27887053915 is an apocalyptic number.

27887053915 is a deficient number, since it is larger than the sum of its proper divisors (12082747301).

27887053915 is a wasteful number, since it uses less digits than its factorization.

27887053915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53739.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 27887053915 in words is "twenty-seven billion, eight hundred eighty-seven million, fifty-three thousand, nine hundred fifteen".