27736677013 has 4 divisors (see below), whose sum is σ = 27762624460. Its totient is φ = 27710729568.

The previous prime is 27736677011. The next prime is 27736677061. The reversal of 27736677013 is 31077663772.

It is a happy number.

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 6998660964 + 20738016049 = 83658^2 + 144007^2 .

It is a cyclic number.

It is not a de Polignac number, because 27736677013 - 2¹ = 27736677011 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 (27736677011) 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, 12972120 + ... + 12974257.

It is an arithmetic number, because the mean of its divisors is an integer number (6940656115).

Almost surely, 2^27736677013 is an apocalyptic number.

It is an amenable number.

27736677013 is a deficient number, since it is larger than the sum of its proper divisors (25947447).

27736677013 is a wasteful number, since it uses less digits than its factorization.

27736677013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25947446.

The product of its (nonzero) digits is 1555848, while the sum is 49.

The spelling of 27736677013 in words is "twenty-seven billion, seven hundred thirty-six million, six hundred seventy-seven thousand, thirteen".