27918803864413 has 12 divisors (see below), whose sum is σ = 35429428281312. Its totient is φ = 21754912101720.

The previous prime is 27918803864381. The next prime is 27918803864449. The reversal of 27918803864413 is 31446830881972.

It is not a de Polignac number, because 27918803864413 - 2⁵ = 27918803864381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27918803864113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25898704345 + ... + 25898705422.

It is an arithmetic number, because the mean of its divisors is an integer number (2952452356776).

Almost surely, 2^{27918803864413} is an apocalyptic number.

It is an amenable number.

27918803864413 is a deficient number, since it is larger than the sum of its proper divisors (7510624416899).

27918803864413 is a wasteful number, since it uses less digits than its factorization.

27918803864413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51797409792 (or 51797409785 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 27918803864413 in words is "twenty-seven trillion, nine hundred eighteen billion, eight hundred three million, eight hundred sixty-four thousand, four hundred thirteen".