18779342723 has 8 divisors (see below), whose sum is σ = 19896039792. Its totient is φ = 17663982336.

The previous prime is 18779342717. The next prime is 18779342737. The reversal of 18779342723 is 32724397781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18779342723 - 2⁴ = 18779342707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18779342753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305165 + ... + 361502.

It is an arithmetic number, because the mean of its divisors is an integer number (2487004974).

Almost surely, 2^18779342723 is an apocalyptic number.

18779342723 is a deficient number, since it is larger than the sum of its proper divisors (1116697069).

18779342723 is a wasteful number, since it uses less digits than its factorization.

18779342723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668341.

The product of its digits is 3556224, while the sum is 53.

The spelling of 18779342723 in words is "eighteen billion, seven hundred seventy-nine million, three hundred forty-two thousand, seven hundred twenty-three".