18457854412 has 24 divisors (see below), whose sum is σ = 33161979312. Its totient is φ = 8985662400.

The previous prime is 18457854409. The next prime is 18457854419. The reversal of 18457854412 is 21445875481.

It is not an unprimeable number, because it can be changed into a prime (18457854419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304539 + ... + 360082.

It is an arithmetic number, because the mean of its divisors is an integer number (1381749138).

Almost surely, 2^18457854412 is an apocalyptic number.

It is an amenable number.

18457854412 is a deficient number, since it is larger than the sum of its proper divisors (14704124900).

18457854412 is a wasteful number, since it uses less digits than its factorization.

18457854412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664809 (or 664807 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 49.

The spelling of 18457854412 in words is "eighteen billion, four hundred fifty-seven million, eight hundred fifty-four thousand, four hundred twelve".