18979204775 has 6 divisors (see below), whose sum is σ = 23534213952. Its totient is φ = 15183363800.

The previous prime is 18979204729. The next prime is 18979204793. The reversal of 18979204775 is 57740297981.

It is not a de Polignac number, because 18979204775 - 2¹² = 18979200679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379584071 + ... + 379584120.

It is an arithmetic number, because the mean of its divisors is an integer number (3922368992).

Almost surely, 2^18979204775 is an apocalyptic number.

18979204775 is a deficient number, since it is larger than the sum of its proper divisors (4555009177).

18979204775 is an equidigital number, since it uses as much as digits as its factorization.

18979204775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759168201 (or 759168196 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 18979204775 in words is "eighteen billion, nine hundred seventy-nine million, two hundred four thousand, seven hundred seventy-five".