138787614799 has 4 divisors (see below), whose sum is σ = 138788377864. Its totient is φ = 138786851736.

The previous prime is 138787614793. The next prime is 138787614803. The reversal of 138787614799 is 997416787831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 138787614799 - 2²³ = 138779226191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138787614793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67264 + ... + 531130.

It is an arithmetic number, because the mean of its divisors is an integer number (34697094466).

Almost surely, 2^138787614799 is an apocalyptic number.

138787614799 is a deficient number, since it is larger than the sum of its proper divisors (763065).

138787614799 is an equidigital number, since it uses as much as digits as its factorization.

138787614799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763064.

The product of its digits is 128024064, while the sum is 70.

The spelling of 138787614799 in words is "one hundred thirty-eight billion, seven hundred eighty-seven million, six hundred fourteen thousand, seven hundred ninety-nine".