18979630967 has 8 divisors (see below), whose sum is σ = 20723502720. Its totient is φ = 17238834360.

The previous prime is 18979630937. The next prime is 18979630987. The reversal of 18979630967 is 76903697981.

It is a happy number.

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

It is not a de Polignac number, because 18979630967 - 2¹⁰ = 18979629943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18979630937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755867 + ... + 780572.

It is an arithmetic number, because the mean of its divisors is an integer number (2590437840).

Almost surely, 2^18979630967 is an apocalyptic number.

18979630967 is a deficient number, since it is larger than the sum of its proper divisors (1743871753).

18979630967 is a wasteful number, since it uses less digits than its factorization.

18979630967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537573.

The product of its (nonzero) digits is 30862944, while the sum is 65.

It can be divided in two parts, 18979 and 630967, that added together give a palindrome (649946).

The spelling of 18979630967 in words is "eighteen billion, nine hundred seventy-nine million, six hundred thirty thousand, nine hundred sixty-seven".