18494452734 has 32 divisors (see below), whose sum is σ = 37306826016. Its totient is φ = 6112005120.

The previous prime is 18494452687. The next prime is 18494452747. The reversal of 18494452734 is 43725449481.

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, 409014 + ... + 451974.

It is an arithmetic number, because the mean of its divisors is an integer number (1165838313).

Almost surely, 2^18494452734 is an apocalyptic number.

18494452734 is an abundant number, since it is smaller than the sum of its proper divisors (18812373282).

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

18494452734 is a wasteful number, since it uses less digits than its factorization.

18494452734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43580.

The product of its digits is 3870720, while the sum is 51.

The spelling of 18494452734 in words is "eighteen billion, four hundred ninety-four million, four hundred fifty-two thousand, seven hundred thirty-four".