78838888883792 has 10 divisors (see below), whose sum is σ = 152750347212378. Its totient is φ = 39419444441888.

The previous prime is 78838888883747. The next prime is 78838888883813. The reversal of 78838888883792 is 29738888883887.

78838888883792 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39454428188176 + 39384460695616 = 6281276^2 + 6275704^2 .

It is a super-3 number, since 3×78838888883792³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78838888883695 and 78838888883704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2463715277603 + ... + 2463715277634.

Almost surely, 2^{78838888883792} is an apocalyptic number.

It is an amenable number.

78838888883792 is a deficient number, since it is larger than the sum of its proper divisors (73911458328586).

78838888883792 is a wasteful number, since it uses less digits than its factorization.

78838888883792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4927430555245 (or 4927430555239 counting only the distinct ones).

The product of its digits is 133177540608, while the sum is 95.

Adding to 78838888883792 its sum of digits (95), we get a palindrome (78838888883887).

The spelling of 78838888883792 in words is "seventy-eight trillion, eight hundred thirty-eight billion, eight hundred eighty-eight million, eight hundred eighty-three thousand, seven hundred ninety-two".