18432371713 has 16 divisors (see below), whose sum is σ = 22185123840. Its totient is φ = 14960322000.

The previous prime is 18432371707. The next prime is 18432371723. The reversal of 18432371713 is 31717323481.

It is a cyclic number.

It is not a de Polignac number, because 18432371713 - 2²⁹ = 17895500801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18432371723) 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, 247938 + ... + 313588.

It is an arithmetic number, because the mean of its divisors is an integer number (1386570240).

Almost surely, 2^18432371713 is an apocalyptic number.

It is an amenable number.

18432371713 is a deficient number, since it is larger than the sum of its proper divisors (3752752127).

18432371713 is a wasteful number, since it uses less digits than its factorization.

18432371713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67788.

The product of its digits is 84672, while the sum is 40.

It can be divided in two parts, 184323 and 71713, that added together give a square (256036 = 506²).

The spelling of 18432371713 in words is "eighteen billion, four hundred thirty-two million, three hundred seventy-one thousand, seven hundred thirteen".