138214445344867 has 4 divisors (see below), whose sum is σ = 138522272617800. Its totient is φ = 137906618071936.

The previous prime is 138214445344849. The next prime is 138214445344873. The reversal of 138214445344867 is 768443544412831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138214445344867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138214445344799 and 138214445344808.

It is not an unprimeable number, because it can be changed into a prime (138214445344817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153913635793 + ... + 153913636690.

It is an arithmetic number, because the mean of its divisors is an integer number (34630568154450).

Almost surely, 2^{138214445344867} is an apocalyptic number.

138214445344867 is a deficient number, since it is larger than the sum of its proper divisors (307827272933).

138214445344867 is an equidigital number, since it uses as much as digits as its factorization.

138214445344867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307827272932.

The product of its digits is 247726080, while the sum is 64.

The spelling of 138214445344867 in words is "one hundred thirty-eight trillion, two hundred fourteen billion, four hundred forty-five million, three hundred forty-four thousand, eight hundred sixty-seven".