27439961424 has 40 divisors (see below), whose sum is σ = 74617441440. Its totient is φ = 8665250688.

The previous prime is 27439961383. The next prime is 27439961441. The reversal of 27439961424 is 42416993472.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15042927 + ... + 15044750.

It is an arithmetic number, because the mean of its divisors is an integer number (1865436036).

Almost surely, 2^27439961424 is an apocalyptic number.

27439961424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27439961424 is an abundant number, since it is smaller than the sum of its proper divisors (47177480016).

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

27439961424 is a wasteful number, since it uses less digits than its factorization.

27439961424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30087707 (or 30087701 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The spelling of 27439961424 in words is "twenty-seven billion, four hundred thirty-nine million, nine hundred sixty-one thousand, four hundred twenty-four".