18250396825 has 12 divisors (see below), whose sum is σ = 22633350480. Its totient is φ = 14598473360.

The previous prime is 18250396811. The next prime is 18250396831. The reversal of 18250396825 is 52869305281.

It is a happy number.

It is not a de Polignac number, because 18250396825 - 2⁹ = 18250396313 is a prime.

18250396825 is a modest number, since divided by 396825 gives 18250 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176946 + ... + 260404.

It is an arithmetic number, because the mean of its divisors is an integer number (1886112540).

Almost surely, 2^18250396825 is an apocalyptic number.

It is an amenable number.

18250396825 is a deficient number, since it is larger than the sum of its proper divisors (4382953655).

18250396825 is an equidigital number, since it uses as much as digits as its factorization.

18250396825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92216 (or 92211 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 18250396825 in words is "eighteen billion, two hundred fifty million, three hundred ninety-six thousand, eight hundred twenty-five".