18973469486 has 12 divisors (see below), whose sum is σ = 28669516008. Its totient is φ = 9417469872.

The previous prime is 18973469477. The next prime is 18973469491. The reversal of 18973469486 is 68496437981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215186 + ... + 290261.

It is an arithmetic number, because the mean of its divisors is an integer number (2389126334).

Almost surely, 2^18973469486 is an apocalyptic number.

18973469486 is a deficient number, since it is larger than the sum of its proper divisors (9696046522).

18973469486 is an equidigital number, since it uses as much as digits as its factorization.

18973469486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505723 (or 505586 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 65.

The spelling of 18973469486 in words is "eighteen billion, nine hundred seventy-three million, four hundred sixty-nine thousand, four hundred eighty-six".