138207018603 has 16 divisors (see below), whose sum is σ = 184801550976. Its totient is φ = 91875611520.

The previous prime is 138207018581. The next prime is 138207018629. The reversal of 138207018603 is 306810702831.

It is not a de Polignac number, because 138207018603 - 2¹⁷ = 138206887531 is a prime.

It is a super-2 number, since 2×138207018603² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138207018643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506900 + ... + 1595982.

It is an arithmetic number, because the mean of its divisors is an integer number (11550096936).

Almost surely, 2^138207018603 is an apocalyptic number.

138207018603 is a deficient number, since it is larger than the sum of its proper divisors (46594532373).

138207018603 is an equidigital number, since it uses as much as digits as its factorization.

138207018603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90554.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 138207018603 in words is "one hundred thirty-eight billion, two hundred seven million, eighteen thousand, six hundred three".