18235212342 has 32 divisors (see below), whose sum is σ = 38666140800. Its totient is φ = 5717055168.

The previous prime is 18235212319. The next prime is 18235212353. The reversal of 18235212342 is 24321253281.

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, 559543 + ... + 591234.

It is an arithmetic number, because the mean of its divisors is an integer number (1208316900).

Almost surely, 2^18235212342 is an apocalyptic number.

18235212342 is an abundant number, since it is smaller than the sum of its proper divisors (20430928458).

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

18235212342 is a wasteful number, since it uses less digits than its factorization.

18235212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150940.

The product of its digits is 23040, while the sum is 33.

The spelling of 18235212342 in words is "eighteen billion, two hundred thirty-five million, two hundred twelve thousand, three hundred forty-two".