18235924712 has 16 divisors (see below), whose sum is σ = 34201430340. Its totient is φ = 9115543296.

The previous prime is 18235924697. The next prime is 18235924741. The reversal of 18235924712 is 21742953281.

It can be written as a sum of positive squares in 2 ways, for example, as 17496411076 + 739513636 = 132274^2 + 27194^2 .

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, 270143 + ... + 330830.

Almost surely, 2^18235924712 is an apocalyptic number.

It is an amenable number.

18235924712 is a deficient number, since it is larger than the sum of its proper divisors (15965505628).

18235924712 is a wasteful number, since it uses less digits than its factorization.

18235924712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604772 (or 604768 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 18235924712 in words is "eighteen billion, two hundred thirty-five million, nine hundred twenty-four thousand, seven hundred twelve".