18716304485 has 16 divisors (see below), whose sum is σ = 22999627200. Its totient is φ = 14613540480.

The previous prime is 18716304473. The next prime is 18716304511. The reversal of 18716304485 is 58440361781.

It is not a de Polignac number, because 18716304485 - 2¹⁸ = 18716042341 is a prime.

It is a super-2 number, since 2×18716304485² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251066 + ... + 316964.

It is an arithmetic number, because the mean of its divisors is an integer number (1437476700).

Almost surely, 2^18716304485 is an apocalyptic number.

It is an amenable number.

18716304485 is a deficient number, since it is larger than the sum of its proper divisors (4283322715).

18716304485 is a wasteful number, since it uses less digits than its factorization.

18716304485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67268.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 18716304485 in words is "eighteen billion, seven hundred sixteen million, three hundred four thousand, four hundred eighty-five".