18949676776 has 64 divisors (see below), whose sum is σ = 37267292160. Its totient is φ = 9022104000.

The previous prime is 18949676761. The next prime is 18949676777. The reversal of 18949676776 is 67767694981.

It is not an unprimeable number, because it can be changed into a prime (18949676777) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14279425 + ... + 14280751.

It is an arithmetic number, because the mean of its divisors is an integer number (582301440).

Almost surely, 2^18949676776 is an apocalyptic number.

It is an amenable number.

18949676776 is a deficient number, since it is larger than the sum of its proper divisors (18317615384).

18949676776 is a wasteful number, since it uses less digits than its factorization.

18949676776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2242 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 70.

The spelling of 18949676776 in words is "eighteen billion, nine hundred forty-nine million, six hundred seventy-six thousand, seven hundred seventy-six".