78289905768384 has 28 divisors (see below), whose sum is σ = 207142042346024. Its totient is φ = 26096635256064.

The previous prime is 78289905768377. The next prime is 78289905768493. The reversal of 78289905768384 is 48386750998287.

78289905768384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78289905768384² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78289905768297 and 78289905768306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203879962747 + ... + 203879963130.

Almost surely, 2^{78289905768384} is an apocalyptic number.

It is an amenable number.

78289905768384 is an abundant number, since it is smaller than the sum of its proper divisors (128852136577640).

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

78289905768384 is a wasteful number, since it uses less digits than its factorization.

78289905768384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407759925892 (or 407759925882 counting only the distinct ones).

The product of its (nonzero) digits is 11705057280, while the sum is 84.

The spelling of 78289905768384 in words is "seventy-eight trillion, two hundred eighty-nine billion, nine hundred five million, seven hundred sixty-eight thousand, three hundred eighty-four".