18096981625 has 8 divisors (see below), whose sum is σ = 22585033224. Its totient is φ = 14477585200.

The previous prime is 18096981619. The next prime is 18096981629. The reversal of 18096981625 is 52618969081.

It can be written as a sum of positive squares in 4 ways, for example, as 36578304 + 18060403321 = 6048^2 + 134389^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18096981625 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18096981629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72387802 + ... + 72388051.

It is an arithmetic number, because the mean of its divisors is an integer number (2823129153).

Almost surely, 2^18096981625 is an apocalyptic number.

It is an amenable number.

18096981625 is a deficient number, since it is larger than the sum of its proper divisors (4488051599).

18096981625 is an equidigital number, since it uses as much as digits as its factorization.

18096981625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144775868 (or 144775858 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 18096981625 in words is "eighteen billion, ninety-six million, nine hundred eighty-one thousand, six hundred twenty-five".