138623486799 has 24 divisors (see below), whose sum is σ = 217729493760. Its totient is φ = 78210712944.

The previous prime is 138623486789. The next prime is 138623486809. The reversal of 138623486799 is 997684326831.

It is an interprime number because it is at equal distance from previous prime (138623486789) and next prime (138623486809).

It is not a de Polignac number, because 138623486799 - 2⁸ = 138623486543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138623486759) by changing a digit.

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, 5956849 + ... + 5980074.

It is an arithmetic number, because the mean of its divisors is an integer number (9072062240).

Almost surely, 2^138623486799 is an apocalyptic number.

138623486799 is a deficient number, since it is larger than the sum of its proper divisors (79106006961).

138623486799 is a wasteful number, since it uses less digits than its factorization.

138623486799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11937019 (or 11937012 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 66.

The spelling of 138623486799 in words is "one hundred thirty-eight billion, six hundred twenty-three million, four hundred eighty-six thousand, seven hundred ninety-nine".