13340742637 has 16 divisors (see below), whose sum is σ = 13582356480. Its totient is φ = 13101347952.

The previous prime is 13340742599. The next prime is 13340742641. The reversal of 13340742637 is 73624704331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13340742637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13340742637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340742677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13795528 + ... + 13796494.

It is an arithmetic number, because the mean of its divisors is an integer number (848897280).

Almost surely, 2^13340742637 is an apocalyptic number.

It is an amenable number.

13340742637 is a deficient number, since it is larger than the sum of its proper divisors (241613843).

13340742637 is an equidigital number, since it uses as much as digits as its factorization.

13340742637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 13340742637 in words is "thirteen billion, three hundred forty million, seven hundred forty-two thousand, six hundred thirty-seven".