18623179742 has 4 divisors (see below), whose sum is σ = 27934769616. Its totient is φ = 9311589870.

The previous prime is 18623179739. The next prime is 18623179793. The reversal of 18623179742 is 24797132681.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×18623179742³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4655794934 + ... + 4655794937.

It is an arithmetic number, because the mean of its divisors is an integer number (6983692404).

Almost surely, 2^18623179742 is an apocalyptic number.

18623179742 is a deficient number, since it is larger than the sum of its proper divisors (9311589874).

18623179742 is an equidigital number, since it uses as much as digits as its factorization.

18623179742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311589873.

The product of its digits is 1016064, while the sum is 50.

The spelling of 18623179742 in words is "eighteen billion, six hundred twenty-three million, one hundred seventy-nine thousand, seven hundred forty-two".