18779900824 has 16 divisors (see below), whose sum is σ = 35218931400. Its totient is φ = 9388185792.

The previous prime is 18779900807. The next prime is 18779900831. The reversal of 18779900824 is 42800997781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174789 + ... + 260980.

Almost surely, 2^18779900824 is an apocalyptic number.

It is an amenable number.

18779900824 is a deficient number, since it is larger than the sum of its proper divisors (16439030576).

18779900824 is a wasteful number, since it uses less digits than its factorization.

18779900824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441162 (or 441158 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 18779900824 in words is "eighteen billion, seven hundred seventy-nine million, nine hundred thousand, eight hundred twenty-four".