18545292472 has 32 divisors (see below), whose sum is σ = 41467737600. Its totient is φ = 7602417504.

The previous prime is 18545292433. The next prime is 18545292473. The reversal of 18545292472 is 27429254581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18545292473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7197972 + ... + 7200547.

It is an arithmetic number, because the mean of its divisors is an integer number (1295866800).

Almost surely, 2^18545292472 is an apocalyptic number.

It is an amenable number.

18545292472 is an abundant number, since it is smaller than the sum of its proper divisors (22922445128).

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

18545292472 is a wasteful number, since it uses less digits than its factorization.

18545292472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398555 (or 14398551 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 18545292472 in words is "eighteen billion, five hundred forty-five million, two hundred ninety-two thousand, four hundred seventy-two".