27722998912 has 96 divisors (see below), whose sum is σ = 65300580540. Its totient is φ = 11686348800.

The previous prime is 27722998907. The next prime is 27722998913. The reversal of 27722998912 is 21989922772.

It can be written as a sum of positive squares in 2 ways, for example, as 27643717696 + 79281216 = 166264^2 + 8904^2 .

It is not an unprimeable number, because it can be changed into a prime (27722998913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346362 + ... + 418822.

Almost surely, 2^27722998912 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 27722998912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32650290270).

27722998912 is an abundant number, since it is smaller than the sum of its proper divisors (37577581628).

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

27722998912 is an equidigital number, since it uses as much as digits as its factorization.

27722998912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72550 (or 72531 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 58.

The spelling of 27722998912 in words is "twenty-seven billion, seven hundred twenty-two million, nine hundred ninety-eight thousand, nine hundred twelve".