27020891916 has 72 divisors (see below), whose sum is σ = 68857152000. Its totient is φ = 8934096096.

The previous prime is 27020891899. The next prime is 27020891923. The reversal of 27020891916 is 61919802072.

27020891916 is a `hidden beast` number, since 270 + 208 + 91 + 91 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2995485 + ... + 3004491.

Almost surely, 2^27020891916 is an apocalyptic number.

It is an amenable number.

27020891916 is an abundant number, since it is smaller than the sum of its proper divisors (41836260084).

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

27020891916 is a wasteful number, since it uses less digits than its factorization.

27020891916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9683 (or 9678 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 27020891916 in words is "twenty-seven billion, twenty million, eight hundred ninety-one thousand, nine hundred sixteen".