18325792850 has 24 divisors (see below), whose sum is σ = 34100655588. Its totient is φ = 7327160000.

The previous prime is 18325792843. The next prime is 18325792853. The reversal of 18325792850 is 5829752381.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4863528121 + 13462264729 = 69739^2 + 116027^2 .

It is a super-2 number, since 2×18325792850² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (18325792853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40100 + ... + 195600.

Almost surely, 2^18325792850 is an apocalyptic number.

18325792850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18325792850 is a deficient number, since it is larger than the sum of its proper divisors (15774862738).

18325792850 is a wasteful number, since it uses less digits than its factorization.

18325792850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157870 (or 157865 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 18325792850 in words is "eighteen billion, three hundred twenty-five million, seven hundred ninety-two thousand, eight hundred fifty".