18402834518050 has 24 divisors (see below), whose sum is σ = 34229462494500. Its totient is φ = 7361092884480.

The previous prime is 18402834517987. The next prime is 18402834518083. The reversal of 18402834518050 is 5081543820481.

It can be written as a sum of positive squares in 6 ways, for example, as 2473803645889 + 15929030872161 = 1572833^2 + 3991119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18402834517985 and 18402834518003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9041026 + ... + 10887874.

Almost surely, 2^{18402834518050} is an apocalyptic number.

18402834518050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18402834518050 is a deficient number, since it is larger than the sum of its proper divisors (15826627976450).

18402834518050 is a wasteful number, since it uses less digits than its factorization.

18402834518050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046150 (or 2046145 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 18402834518050 in words is "eighteen trillion, four hundred two billion, eight hundred thirty-four million, five hundred eighteen thousand, fifty".