18454665486 has 48 divisors (see below), whose sum is σ = 39760675200. Its totient is φ = 5708115840.

The previous prime is 18454665473. The next prime is 18454665497. The reversal of 18454665486 is 68456645481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48165 + ... + 198063.

It is an arithmetic number, because the mean of its divisors is an integer number (828347400).

Almost surely, 2^18454665486 is an apocalyptic number.

18454665486 is an abundant number, since it is smaller than the sum of its proper divisors (21306009714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18454665486 is a wasteful number, since it uses less digits than its factorization.

18454665486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150009 (or 149992 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 57.

The spelling of 18454665486 in words is "eighteen billion, four hundred fifty-four million, six hundred sixty-five thousand, four hundred eighty-six".