18083214138 has 16 divisors (see below), whose sum is σ = 39454285536. Its totient is φ = 5479761840.

The previous prime is 18083214137. The next prime is 18083214167. The reversal of 18083214138 is 83141238081.

It is a junction number, because it is equal to n+sod(n) for n = 18083214096 and 18083214105.

It is not an unprimeable number, because it can be changed into a prime (18083214133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136993981 + ... + 136994112.

It is an arithmetic number, because the mean of its divisors is an integer number (2465892846).

Almost surely, 2^18083214138 is an apocalyptic number.

18083214138 is an abundant number, since it is smaller than the sum of its proper divisors (21371071398).

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

18083214138 is a wasteful number, since it uses less digits than its factorization.

18083214138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273988109.

The product of its (nonzero) digits is 36864, while the sum is 39.

It can be divided in two parts, 18083 and 214138, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 18083214138 in words is "eighteen billion, eighty-three million, two hundred fourteen thousand, one hundred thirty-eight".