27739670944 has 48 divisors (see below), whose sum is σ = 56131797960. Its totient is φ = 13489090560.

The previous prime is 27739670921. The next prime is 27739670947. The reversal of 27739670944 is 44907693772.

It can be written as a sum of positive squares in 4 ways, for example, as 3031603600 + 24708067344 = 55060^2 + 157188^2 .

It is a super-2 number, since 2×27739670944² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27739670947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93892 + ... + 253564.

Almost surely, 2^27739670944 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 27739670944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28065898980).

27739670944 is an abundant number, since it is smaller than the sum of its proper divisors (28392127016).

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

27739670944 is a wasteful number, since it uses less digits than its factorization.

27739670944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159833 (or 159825 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 58.

The spelling of 27739670944 in words is "twenty-seven billion, seven hundred thirty-nine million, six hundred seventy thousand, nine hundred forty-four".