18133347740 has 12 divisors (see below), whose sum is σ = 38080030296. Its totient is φ = 7253339088.

The previous prime is 18133347733. The next prime is 18133347751. The reversal of 18133347740 is 4774333181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453333674 + ... + 453333713.

It is an arithmetic number, because the mean of its divisors is an integer number (3173335858).

Almost surely, 2^18133347740 is an apocalyptic number.

18133347740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18133347740 is an abundant number, since it is smaller than the sum of its proper divisors (19946682556).

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

18133347740 is a wasteful number, since it uses less digits than its factorization.

18133347740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906667396 (or 906667394 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 18133347740 in words is "eighteen billion, one hundred thirty-three million, three hundred forty-seven thousand, seven hundred forty".