138650507637 has 8 divisors (see below), whose sum is σ = 186216740736. Its totient is φ = 91758973152.

The previous prime is 138650507617. The next prime is 138650507657. The reversal of 138650507637 is 736705056831.

It is an interprime number because it is at equal distance from previous prime (138650507617) and next prime (138650507657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138650507637 - 2⁶ = 138650507573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138650507637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138650507617) 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 7 ways as a sum of consecutive naturals, for example, 168674173 + ... + 168674994.

It is an arithmetic number, because the mean of its divisors is an integer number (23277092592).

Almost surely, 2^138650507637 is an apocalyptic number.

It is an amenable number.

138650507637 is a deficient number, since it is larger than the sum of its proper divisors (47566233099).

138650507637 is a wasteful number, since it uses less digits than its factorization.

138650507637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337349307.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 138650507637 in words is "one hundred thirty-eight billion, six hundred fifty million, five hundred seven thousand, six hundred thirty-seven".