27807422792 has 108 divisors (see below), whose sum is σ = 57528030105. Its totient is φ = 12598875072.

The previous prime is 27807422719. The next prime is 27807422813. The reversal of 27807422792 is 29722470872.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 27790890436 + 16532356 = 166706^2 + 4066^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=117914.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27807422792.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 259882403 + ... + 259882509.

Almost surely, 2^27807422792 is an apocalyptic number.

It is an amenable number.

27807422792 is an abundant number, since it is smaller than the sum of its proper divisors (29720607313).

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

27807422792 is a wasteful number, since it uses less digits than its factorization.

27807422792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 50.

Multiplying 27807422792 by its sum of digits (50), we get a square (1390371139600 = 1179140²).

The spelling of 27807422792 in words is "twenty-seven billion, eight hundred seven million, four hundred twenty-two thousand, seven hundred ninety-two".