78468399386396 has 12 divisors (see below), whose sum is σ = 137390155429800. Its totient is φ = 39214069263600.

The previous prime is 78468399386393. The next prime is 78468399386413. The reversal of 78468399386396 is 69368399386487.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468399386393) 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, 5032598630 + ... + 5032614221.

It is an arithmetic number, because the mean of its divisors is an integer number (11449179619150).

Almost surely, 2^{78468399386396} is an apocalyptic number.

It is an amenable number.

78468399386396 is a deficient number, since it is larger than the sum of its proper divisors (58921756043404).

78468399386396 is a wasteful number, since it uses less digits than its factorization.

78468399386396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065214804 (or 10065214802 counting only the distinct ones).

The product of its digits is 60949905408, while the sum is 89.

Subtracting from 78468399386396 its reverse (69368399386487), we obtain a palindrome (9099999999909).

The spelling of 78468399386396 in words is "seventy-eight trillion, four hundred sixty-eight billion, three hundred ninety-nine million, three hundred eighty-six thousand, three hundred ninety-six".