138630507068 has 6 divisors (see below), whose sum is σ = 242603387376. Its totient is φ = 69315253532.

The previous prime is 138630507047. The next prime is 138630507089. The reversal of 138630507068 is 860705036831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138630507047) and next prime (138630507089).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17328813380 + ... + 17328813387.

It is an arithmetic number, because the mean of its divisors is an integer number (40433897896).

Almost surely, 2^138630507068 is an apocalyptic number.

It is an amenable number.

138630507068 is a deficient number, since it is larger than the sum of its proper divisors (103972880308).

138630507068 is a wasteful number, since it uses less digits than its factorization.

138630507068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34657626771 (or 34657626769 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 138630507068 in words is "one hundred thirty-eight billion, six hundred thirty million, five hundred seven thousand, sixty-eight".