18502050500 has 24 divisors (see below), whose sum is σ = 40408479384. Its totient is φ = 7400820000.

The previous prime is 18502050491. The next prime is 18502050557. The reversal of 18502050500 is 505020581.

It can be written as a sum of positive squares in 4 ways, for example, as 240312004 + 18261738496 = 15502^2 + 135136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18502050500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501551 + ... + 18502550.

It is an arithmetic number, because the mean of its divisors is an integer number (1683686641).

Almost surely, 2^18502050500 is an apocalyptic number.

18502050500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18502050500 is an abundant number, since it is smaller than the sum of its proper divisors (21906428884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18502050500 is a wasteful number, since it uses less digits than its factorization.

18502050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37004120 (or 37004108 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 18502050500 in words is "eighteen billion, five hundred two million, fifty thousand, five hundred".