27513939893 has 12 divisors (see below), whose sum is σ = 30247200480. Its totient is φ = 25008863880.

The previous prime is 27513939853. The next prime is 27513939917. The reversal of 27513939893 is 39893931572.

It is not a de Polignac number, because 27513939893 - 2¹⁸ = 27513677749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27513939853) 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, 1052738 + ... + 1078556.

It is an arithmetic number, because the mean of its divisors is an integer number (2520600040).

Almost surely, 2^27513939893 is an apocalyptic number.

It is an amenable number.

27513939893 is a deficient number, since it is larger than the sum of its proper divisors (2733260587).

27513939893 is a wasteful number, since it uses less digits than its factorization.

27513939893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34648 (or 34637 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 59.

The spelling of 27513939893 in words is "twenty-seven billion, five hundred thirteen million, nine hundred thirty-nine thousand, eight hundred ninety-three".