27257772312 has 96 divisors (see below), whose sum is σ = 74649584880. Its totient is φ = 8984586240.

The previous prime is 27257772299. The next prime is 27257772317. The reversal of 27257772312 is 21327775272.

27257772312 is a `hidden beast` number, since 2 + 7 + 2 + 577 + 72 + 3 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27257772317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3714487 + ... + 3721817.

Almost surely, 2^27257772312 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 27257772312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37324792440).

27257772312 is an abundant number, since it is smaller than the sum of its proper divisors (47391812568).

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

27257772312 is a wasteful number, since it uses less digits than its factorization.

27257772312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913 (or 7906 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The spelling of 27257772312 in words is "twenty-seven billion, two hundred fifty-seven million, seven hundred seventy-two thousand, three hundred twelve".