138861285323 has 8 divisors (see below), whose sum is σ = 139021874640. Its totient is φ = 138700754080.

The previous prime is 138861285289. The next prime is 138861285341. The reversal of 138861285323 is 323582168831.

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 138861285323 - 2¹² = 138861281227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138861285373) 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, 6290261 + ... + 6312297.

It is an arithmetic number, because the mean of its divisors is an integer number (17377734330).

Almost surely, 2^138861285323 is an apocalyptic number.

138861285323 is a deficient number, since it is larger than the sum of its proper divisors (160589317).

138861285323 is a wasteful number, since it uses less digits than its factorization.

138861285323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29037.

The product of its digits is 1658880, while the sum is 50.

The spelling of 138861285323 in words is "one hundred thirty-eight billion, eight hundred sixty-one million, two hundred eighty-five thousand, three hundred twenty-three".