18050835978 has 48 divisors (see below), whose sum is σ = 44738543616. Its totient is φ = 5152623840.

The previous prime is 18050835937. The next prime is 18050835997. The reversal of 18050835978 is 87953805081.

18050835978 is a `hidden beast` number, since 1 + 80 + 508 + 3 + 59 + 7 + 8 = 666.

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 23 ways as a sum of consecutive naturals, for example, 72183 + ... + 203253.

It is an arithmetic number, because the mean of its divisors is an integer number (932052992).

Almost surely, 2^18050835978 is an apocalyptic number.

18050835978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18050835978 is an abundant number, since it is smaller than the sum of its proper divisors (26687707638).

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

18050835978 is a wasteful number, since it uses less digits than its factorization.

18050835978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132179 (or 132176 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 18050835978 in words is "eighteen billion, fifty million, eight hundred thirty-five thousand, nine hundred seventy-eight".