138634372629 has 12 divisors (see below), whose sum is σ = 200433210432. Its totient is φ = 92338194600.

The previous prime is 138634372607. The next prime is 138634372631. The reversal of 138634372629 is 926273436831.

138634372629 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 3 + 4 + 3 + 7 + 2 + 629 = 666.

It is not a de Polignac number, because 138634372629 - 2¹² = 138634368533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138634372699) 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 in 11 ways as a sum of consecutive naturals, for example, 7049677 + ... + 7069314.

It is an arithmetic number, because the mean of its divisors is an integer number (16702767536).

Almost surely, 2^138634372629 is an apocalyptic number.

It is an amenable number.

138634372629 is a deficient number, since it is larger than the sum of its proper divisors (61798837803).

138634372629 is a wasteful number, since it uses less digits than its factorization.

138634372629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14120088 (or 14120085 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 138634372629 in words is "one hundred thirty-eight billion, six hundred thirty-four million, three hundred seventy-two thousand, six hundred twenty-nine".