18500082139 has 16 divisors (see below), whose sum is σ = 23092033536. Its totient is φ = 14398776000.

The previous prime is 18500082121. The next prime is 18500082149. The reversal of 18500082139 is 93128000581.

It is not a de Polignac number, because 18500082139 - 2⁷ = 18500082011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18500082098 and 18500082107.

It is not an unprimeable number, because it can be changed into a prime (18500082149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 74187 + ... + 206164.

It is an arithmetic number, because the mean of its divisors is an integer number (1443252096).

Almost surely, 2^18500082139 is an apocalyptic number.

18500082139 is a deficient number, since it is larger than the sum of its proper divisors (4591951397).

18500082139 is a wasteful number, since it uses less digits than its factorization.

18500082139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281226.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 18500082139 in words is "eighteen billion, five hundred million, eighty-two thousand, one hundred thirty-nine".