27168538956 has 24 divisors (see below), whose sum is σ = 68269662384. Its totient is φ = 8359550400.

The previous prime is 27168538951. The next prime is 27168538993. The reversal of 27168538956 is 65983586172.

It is a self number, because there is not a number n which added to its sum of digits gives 27168538956.

It is not an unprimeable number, because it can be changed into a prime (27168538951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87078495 + ... + 87078806.

It is an arithmetic number, because the mean of its divisors is an integer number (2844569266).

Almost surely, 2^27168538956 is an apocalyptic number.

27168538956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27168538956 is an abundant number, since it is smaller than the sum of its proper divisors (41101123428).

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

27168538956 is a wasteful number, since it uses less digits than its factorization.

27168538956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174157321 (or 174157319 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 60.

The spelling of 27168538956 in words is "twenty-seven billion, one hundred sixty-eight million, five hundred thirty-eight thousand, nine hundred fifty-six".