18904846474 has 8 divisors (see below), whose sum is σ = 28482192288. Its totient is φ = 9410782380.

The previous prime is 18904846469. The next prime is 18904846483. The reversal of 18904846474 is 47464840981.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20819862 + ... + 20820769.

It is an arithmetic number, because the mean of its divisors is an integer number (3560274036).

Almost surely, 2^18904846474 is an apocalyptic number.

18904846474 is a deficient number, since it is larger than the sum of its proper divisors (9577345814).

18904846474 is a wasteful number, since it uses less digits than its factorization.

18904846474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41640860.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 18904846474 in words is "eighteen billion, nine hundred four million, eight hundred forty-six thousand, four hundred seventy-four".