27797793318 has 24 divisors (see below), whose sum is σ = 60234848856. Its totient is φ = 9264962400.

The previous prime is 27797793277. The next prime is 27797793379. The reversal of 27797793318 is 81339779772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108178 + ... + 259418.

It is an arithmetic number, because the mean of its divisors is an integer number (2509785369).

Almost surely, 2^27797793318 is an apocalyptic number.

27797793318 is an abundant number, since it is smaller than the sum of its proper divisors (32437055538).

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

27797793318 is a wasteful number, since it uses less digits than its factorization.

27797793318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161460 (or 161457 counting only the distinct ones).

The product of its digits is 28005264, while the sum is 63.

The spelling of 27797793318 in words is "twenty-seven billion, seven hundred ninety-seven million, seven hundred ninety-three thousand, three hundred eighteen".