27311513579 has 16 divisors (see below), whose sum is σ = 31734825408. Its totient is φ = 23020526592.

The previous prime is 27311513549. The next prime is 27311513587. The reversal of 27311513579 is 97531511372.

It is not a de Polignac number, because 27311513579 - 2²⁸ = 27043078123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27311513549) 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 15 ways as a sum of consecutive naturals, for example, 92909 + ... + 251505.

It is an arithmetic number, because the mean of its divisors is an integer number (1983426588).

Almost surely, 2^27311513579 is an apocalyptic number.

27311513579 is a deficient number, since it is larger than the sum of its proper divisors (4423311829).

27311513579 is a wasteful number, since it uses less digits than its factorization.

27311513579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159014.

The product of its digits is 198450, while the sum is 44.

The spelling of 27311513579 in words is "twenty-seven billion, three hundred eleven million, five hundred thirteen thousand, five hundred seventy-nine".