27664725732 has 24 divisors (see below), whose sum is σ = 73772602176. Its totient is φ = 7904207328.

The previous prime is 27664725731. The next prime is 27664725733. The reversal of 27664725732 is 23752746672.

It is an interprime number because it is at equal distance from previous prime (27664725731) and next prime (27664725733).

It is not an unprimeable number, because it can be changed into a prime (27664725731) 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, 164670903 + ... + 164671070.

It is an arithmetic number, because the mean of its divisors is an integer number (3073858424).

Almost surely, 2^27664725732 is an apocalyptic number.

It is an amenable number.

27664725732 is an abundant number, since it is smaller than the sum of its proper divisors (46107876444).

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

27664725732 is a wasteful number, since it uses less digits than its factorization.

27664725732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329341987 (or 329341985 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 51.

The spelling of 27664725732 in words is "twenty-seven billion, six hundred sixty-four million, seven hundred twenty-five thousand, seven hundred thirty-two".