138375660874 has 8 divisors (see below), whose sum is σ = 226432899648. Its totient is φ = 62898027660.

The previous prime is 138375660853. The next prime is 138375660881. The reversal of 138375660874 is 478066573831.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3144901362 + ... + 3144901405.

It is an arithmetic number, because the mean of its divisors is an integer number (28304112456).

Almost surely, 2^138375660874 is an apocalyptic number.

138375660874 is a deficient number, since it is larger than the sum of its proper divisors (88057238774).

138375660874 is a wasteful number, since it uses less digits than its factorization.

138375660874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289802780.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 138375660874 in words is "one hundred thirty-eight billion, three hundred seventy-five million, six hundred sixty thousand, eight hundred seventy-four".