27505900916 has 12 divisors (see below), whose sum is σ = 51838044132. Its totient is φ = 12695031168.

The previous prime is 27505900909. The next prime is 27505900921. The reversal of 27505900916 is 61900950572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6424022500 + 21081878416 = 80150^2 + 145196^2 .

It is a congruent number.

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, 264479765 + ... + 264479868.

It is an arithmetic number, because the mean of its divisors is an integer number (4319837011).

Almost surely, 2^27505900916 is an apocalyptic number.

27505900916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27505900916 is a deficient number, since it is larger than the sum of its proper divisors (24332143216).

27505900916 is a wasteful number, since it uses less digits than its factorization.

27505900916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528959650 (or 528959648 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 27505900916 in words is "twenty-seven billion, five hundred five million, nine hundred thousand, nine hundred sixteen".