138630507071 has 12 divisors (see below), whose sum is σ = 163710539856. Its totient is φ = 114993041760.

The previous prime is 138630507047. The next prime is 138630507089. The reversal of 138630507071 is 170705036831.

It is not a de Polignac number, because 138630507071 - 2¹⁸ = 138630244927 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138630507011) 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 11 ways as a sum of consecutive naturals, for example, 10297310 + ... + 10310763.

It is an arithmetic number, because the mean of its divisors is an integer number (13642544988).

Almost surely, 2^138630507071 is an apocalyptic number.

138630507071 is a deficient number, since it is larger than the sum of its proper divisors (25080032785).

138630507071 is an equidigital number, since it uses as much as digits as its factorization.

138630507071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20608142 (or 20608111 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 138630507071 in words is "one hundred thirty-eight billion, six hundred thirty million, five hundred seven thousand, seventy-one".