27136823839 has 4 divisors (see below), whose sum is σ = 27258513856. Its totient is φ = 27015133824.

The previous prime is 27136823797. The next prime is 27136823899. The reversal of 27136823839 is 93832863172.

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

It is a cyclic number.

It is not a de Polignac number, because 27136823839 - 2⁷ = 27136823711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27136823899) 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, 60844674 + ... + 60845119.

It is an arithmetic number, because the mean of its divisors is an integer number (6814628464).

Almost surely, 2^27136823839 is an apocalyptic number.

27136823839 is a deficient number, since it is larger than the sum of its proper divisors (121690017).

27136823839 is a wasteful number, since it uses less digits than its factorization.

27136823839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121690016.

The product of its digits is 2612736, while the sum is 52.

The spelling of 27136823839 in words is "twenty-seven billion, one hundred thirty-six million, eight hundred twenty-three thousand, eight hundred thirty-nine".