7638144823794 has 16 divisors (see below), whose sum is σ = 15282060850368. Its totient is φ = 2545086407472.

The previous prime is 7638144823789. The next prime is 7638144823823. The reversal of 7638144823794 is 4973284418367.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240449577 + ... + 240481340.

It is an arithmetic number, because the mean of its divisors is an integer number (955128803148).

Almost surely, 2^{7638144823794} is an apocalyptic number.

7638144823794 is an abundant number, since it is smaller than the sum of its proper divisors (7643916026574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7638144823794 is a wasteful number, since it uses less digits than its factorization.

7638144823794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480933569.

The product of its digits is 195084288, while the sum is 66.

The spelling of 7638144823794 in words is "seven trillion, six hundred thirty-eight billion, one hundred forty-four million, eight hundred twenty-three thousand, seven hundred ninety-four".