138630075667 has 8 divisors (see below), whose sum is σ = 140703575040. Its totient is φ = 136559936520.

The previous prime is 138630075659. The next prime is 138630075671. The reversal of 138630075667 is 766570036831.

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

It is a cyclic number.

It is not a de Polignac number, because 138630075667 - 2³ = 138630075659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138630075697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756867 + ... + 922012.

It is an arithmetic number, because the mean of its divisors is an integer number (17587946880).

Almost surely, 2^138630075667 is an apocalyptic number.

138630075667 is a deficient number, since it is larger than the sum of its proper divisors (2073499373).

138630075667 is a wasteful number, since it uses less digits than its factorization.

138630075667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680113.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 138630075667 in words is "one hundred thirty-eight billion, six hundred thirty million, seventy-five thousand, six hundred sixty-seven".