18134643740 has 12 divisors (see below), whose sum is σ = 38082751896. Its totient is φ = 7253857488.

The previous prime is 18134643739. The next prime is 18134643763. The reversal of 18134643740 is 4734643181.

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, 453366074 + ... + 453366113.

It is an arithmetic number, because the mean of its divisors is an integer number (3173562658).

Almost surely, 2^18134643740 is an apocalyptic number.

18134643740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18134643740 is an abundant number, since it is smaller than the sum of its proper divisors (19948108156).

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

18134643740 is a wasteful number, since it uses less digits than its factorization.

18134643740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906732196 (or 906732194 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 18134643740 in words is "eighteen billion, one hundred thirty-four million, six hundred forty-three thousand, seven hundred forty".