18235894996 has 18 divisors (see below), whose sum is σ = 35077724570. Its totient is φ = 8289042960.

The previous prime is 18235894991. The next prime is 18235895003. The reversal of 18235894996 is 69949853281.

It can be written as a sum of positive squares in only one way, i.e., 17639558596 + 596336400 = 132814^2 + 24420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18235894991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18838251 + ... + 18839218.

Almost surely, 2^18235894996 is an apocalyptic number.

It is an amenable number.

18235894996 is a deficient number, since it is larger than the sum of its proper divisors (16841829574).

18235894996 is a wasteful number, since it uses less digits than its factorization.

18235894996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37677495 (or 37677482 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 64.

The spelling of 18235894996 in words is "eighteen billion, two hundred thirty-five million, eight hundred ninety-four thousand, nine hundred ninety-six".