27975112722 has 90 divisors (see below), whose sum is σ = 66675484623. Its totient is φ = 8765152128.

The previous prime is 27975112717. The next prime is 27975112723. The reversal of 27975112722 is 22721157972.

27975112722 is a `hidden beast` number, since 2 + 7 + 97 + 511 + 27 + 22 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 7654325121 + 20320787601 = 87489^2 + 142551^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=118269.

It is not an unprimeable number, because it can be changed into a prime (27975112723) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 36189928 + ... + 36190700.

Almost surely, 2^27975112722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27975112722

27975112722 is an abundant number, since it is smaller than the sum of its proper divisors (38700371901).

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

27975112722 is an frugal number, since it uses more digits than its factorization.

27975112722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594 (or 795 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The spelling of 27975112722 in words is "twenty-seven billion, nine hundred seventy-five million, one hundred twelve thousand, seven hundred twenty-two".