18080742713 has 4 divisors (see below), whose sum is σ = 19724446608. Its totient is φ = 16437038820.

The previous prime is 18080742679. The next prime is 18080742763. The reversal of 18080742713 is 31724708081.

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: 31724708081 = 11 ⋅2884064371.

It is a cyclic number.

It is not a de Polignac number, because 18080742713 - 2²⁰ = 18079694137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18080742763) 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, 821851931 + ... + 821851952.

It is an arithmetic number, because the mean of its divisors is an integer number (4931111652).

Almost surely, 2^18080742713 is an apocalyptic number.

It is an amenable number.

18080742713 is a deficient number, since it is larger than the sum of its proper divisors (1643703895).

18080742713 is a wasteful number, since it uses less digits than its factorization.

18080742713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643703894.

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 18080742713 in words is "eighteen billion, eighty million, seven hundred forty-two thousand, seven hundred thirteen".