138674506379 has 8 divisors (see below), whose sum is σ = 139356241920. Its totient is φ = 137993305896.

The previous prime is 138674506367. The next prime is 138674506387. The reversal of 138674506379 is 973605476831.

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 138674506379 - 2¹² = 138674502283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138674506319) 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, 390902 + ... + 655860.

It is an arithmetic number, because the mean of its divisors is an integer number (17419530240).

Almost surely, 2^138674506379 is an apocalyptic number.

138674506379 is a deficient number, since it is larger than the sum of its proper divisors (681735541).

138674506379 is a wasteful number, since it uses less digits than its factorization.

138674506379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267529.

The product of its (nonzero) digits is 22861440, while the sum is 59.

The spelling of 138674506379 in words is "one hundred thirty-eight billion, six hundred seventy-four million, five hundred six thousand, three hundred seventy-nine".