13613337761 has 4 divisors (see below), whose sum is σ = 13661441712. Its totient is φ = 13565233812.

The previous prime is 13613337733. The next prime is 13613337781. The reversal of 13613337761 is 16773331631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16773331631 = 7 ⋅2396190233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13613337761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13613337781) 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, 24051551 + ... + 24052116.

It is an arithmetic number, because the mean of its divisors is an integer number (3415360428).

Almost surely, 2^13613337761 is an apocalyptic number.

It is an amenable number.

13613337761 is a deficient number, since it is larger than the sum of its proper divisors (48103951).

13613337761 is an equidigital number, since it uses as much as digits as its factorization.

13613337761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48103950.

The product of its digits is 142884, while the sum is 41.

The spelling of 13613337761 in words is "thirteen billion, six hundred thirteen million, three hundred thirty-seven thousand, seven hundred sixty-one".