7138844244394 has 8 divisors (see below), whose sum is σ = 10710592747200. Its totient is φ = 3568646661996.

The previous prime is 7138844244347. The next prime is 7138844244397. The reversal of 7138844244394 is 4934424488317.

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

It is not an unprimeable number, because it can be changed into a prime (7138844244397) 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, 387718594 + ... + 387737005.

It is an arithmetic number, because the mean of its divisors is an integer number (1338824093400).

Almost surely, 2^{7138844244394} is an apocalyptic number.

7138844244394 is a deficient number, since it is larger than the sum of its proper divisors (3571748502806).

7138844244394 is a wasteful number, since it uses less digits than its factorization.

7138844244394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775460204.

The product of its digits is 74317824, while the sum is 61.

The spelling of 7138844244394 in words is "seven trillion, one hundred thirty-eight billion, eight hundred forty-four million, two hundred forty-four thousand, three hundred ninety-four".