27013239793 has 4 divisors (see below), whose sum is σ = 27013853668. Its totient is φ = 27012625920.

The previous prime is 27013239779. The next prime is 27013239811. The reversal of 27013239793 is 39793231072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6332498929 + 20680740864 = 79577^2 + 143808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27013239793 is a prime.

It is a super-2 number, since 2×27013239793² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27013239703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235368 + ... + 330793.

It is an arithmetic number, because the mean of its divisors is an integer number (6753463417).

Almost surely, 2^27013239793 is an apocalyptic number.

It is an amenable number.

27013239793 is a deficient number, since it is larger than the sum of its proper divisors (613875).

27013239793 is an equidigital number, since it uses as much as digits as its factorization.

27013239793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613874.

The product of its (nonzero) digits is 428652, while the sum is 46.

The spelling of 27013239793 in words is "twenty-seven billion, thirteen million, two hundred thirty-nine thousand, seven hundred ninety-three".