27739807131 has 12 divisors (see below), whose sum is σ = 39035519592. Its totient is φ = 17519877504.

The previous prime is 27739807127. The next prime is 27739807211. The reversal of 27739807131 is 13170893772.

It is not a de Polignac number, because 27739807131 - 2² = 27739807127 is a prime.

It is a super-2 number, since 2×27739807131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27739807231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12805846 + ... + 12808011.

It is an arithmetic number, because the mean of its divisors is an integer number (3252959966).

Almost surely, 2^27739807131 is an apocalyptic number.

27739807131 is a deficient number, since it is larger than the sum of its proper divisors (11295712461).

27739807131 is a wasteful number, since it uses less digits than its factorization.

27739807131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25613898 (or 25613879 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 27739807131 in words is "twenty-seven billion, seven hundred thirty-nine million, eight hundred seven thousand, one hundred thirty-one".