138763751375 has 8 divisors (see below), whose sum is σ = 173177161872. Its totient is φ = 111011001000.

The previous prime is 138763751249. The next prime is 138763751377. The reversal of 138763751375 is 573157367831.

It is a happy number.

It is not a de Polignac number, because 138763751375 - 2¹⁸ = 138763489231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138763751375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138763751377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555054881 + ... + 555055130.

It is an arithmetic number, because the mean of its divisors is an integer number (21647145234).

Almost surely, 2^138763751375 is an apocalyptic number.

138763751375 is a deficient number, since it is larger than the sum of its proper divisors (34413410497).

138763751375 is an equidigital number, since it uses as much as digits as its factorization.

138763751375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110110026 (or 1110110016 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 56.

The spelling of 138763751375 in words is "one hundred thirty-eight billion, seven hundred sixty-three million, seven hundred fifty-one thousand, three hundred seventy-five".