18384506135 has 32 divisors (see below), whose sum is σ = 23286915072. Its totient is φ = 13912784640.

The previous prime is 18384506111. The next prime is 18384506159. The reversal of 18384506135 is 53160548381.

It is an interprime number because it is at equal distance from previous prime (18384506111) and next prime (18384506159).

It is a de Polignac number, because none of the positive numbers 2^k-18384506135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11094227 + ... + 11095883.

It is an arithmetic number, because the mean of its divisors is an integer number (727716096).

Almost surely, 2^18384506135 is an apocalyptic number.

18384506135 is a deficient number, since it is larger than the sum of its proper divisors (4902408937).

18384506135 is a wasteful number, since it uses less digits than its factorization.

18384506135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 18384506135 in words is "eighteen billion, three hundred eighty-four million, five hundred six thousand, one hundred thirty-five".