13992649513 has 4 divisors (see below), whose sum is σ = 14026861780. Its totient is φ = 13958437248.

The previous prime is 13992649511. The next prime is 13992649523. The reversal of 13992649513 is 31594629931.

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 8706196249 + 5286453264 = 93307^2 + 72708^2 .

It is a cyclic number.

It is not a de Polignac number, because 13992649513 - 2¹ = 13992649511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13992649511) 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, 17105520 + ... + 17106337.

It is an arithmetic number, because the mean of its divisors is an integer number (3506715445).

Almost surely, 2^13992649513 is an apocalyptic number.

It is an amenable number.

13992649513 is a deficient number, since it is larger than the sum of its proper divisors (34212267).

13992649513 is an equidigital number, since it uses as much as digits as its factorization.

13992649513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34212266.

The product of its digits is 1574640, while the sum is 52.

The spelling of 13992649513 in words is "thirteen billion, nine hundred ninety-two million, six hundred forty-nine thousand, five hundred thirteen".