27157512192 has 240 divisors, whose sum is σ = 75605265120. Its totient is φ = 8663334912.

The previous prime is 27157512181. The next prime is 27157512197. The reversal of 27157512192 is 29121575172.

It is not an unprimeable number, because it can be changed into a prime (27157512197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198229948 + ... + 198230084.

It is an arithmetic number, because the mean of its divisors is an integer number (315021938).

Almost surely, 2^27157512192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27157512192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37802632560).

27157512192 is an abundant number, since it is smaller than the sum of its proper divisors (48447752928).

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

27157512192 is a wasteful number, since it uses less digits than its factorization.

27157512192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 288 counting only the distinct ones).

The product of its digits is 88200, while the sum is 42.

The spelling of 27157512192 in words is "twenty-seven billion, one hundred fifty-seven million, five hundred twelve thousand, one hundred ninety-two".