138787614793 has 2 divisors, whose sum is σ = 138787614794. Its totient is φ = 138787614792.

The previous prime is 138787614787. The next prime is 138787614803. The reversal of 138787614793 is 397416787831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114435388089 + 24352226704 = 338283^2 + 156052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138787614793 is a prime.

It is not a weakly prime, because it can be changed into another prime (138787614733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69393807396 + 69393807397.

It is an arithmetic number, because the mean of its divisors is an integer number (69393807397).

Almost surely, 2^138787614793 is an apocalyptic number.

It is an amenable number.

138787614793 is a deficient number, since it is larger than the sum of its proper divisors (1).

138787614793 is an equidigital number, since it uses as much as digits as its factorization.

138787614793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 64.

The spelling of 138787614793 in words is "one hundred thirty-eight billion, seven hundred eighty-seven million, six hundred fourteen thousand, seven hundred ninety-three".