27039442872 has 32 divisors (see below), whose sum is σ = 72798500880. Its totient is φ = 8319828480.

The previous prime is 27039442867. The next prime is 27039442877. The reversal of 27039442872 is 27824493072.

It is an interprime number because it is at equal distance from previous prime (27039442867) and next prime (27039442877).

It is a super-2 number, since 2×27039442872² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27039442877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43332129 + ... + 43332752.

Almost surely, 2^27039442872 is an apocalyptic number.

It is an amenable number.

27039442872 is an abundant number, since it is smaller than the sum of its proper divisors (45759058008).

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

27039442872 is a wasteful number, since it uses less digits than its factorization.

27039442872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86664903 (or 86664899 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 27039442872 in words is "twenty-seven billion, thirty-nine million, four hundred forty-two thousand, eight hundred seventy-two".