18485172416476 has 6 divisors (see below), whose sum is σ = 32349051728840. Its totient is φ = 9242586208236.

The previous prime is 18485172416449. The next prime is 18485172416483. The reversal of 18485172416476 is 67461427158481.

It is a super-2 number, since 2×18485172416476² (a number of 27 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 as a sum of consecutive naturals, namely, 2310646552056 + ... + 2310646552063.

Almost surely, 2^{18485172416476} is an apocalyptic number.

It is an amenable number.

18485172416476 is a deficient number, since it is larger than the sum of its proper divisors (13863879312364).

18485172416476 is a wasteful number, since it uses less digits than its factorization.

18485172416476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621293104123 (or 4621293104121 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 64.

The spelling of 18485172416476 in words is "eighteen trillion, four hundred eighty-five billion, one hundred seventy-two million, four hundred sixteen thousand, four hundred seventy-six".