78824321112 has 32 divisors (see below), whose sum is σ = 197099251200. Its totient is φ = 26269647264.

The previous prime is 78824321089. The next prime is 78824321119. The reversal of 78824321112 is 21112342887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78824321119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193812 + ... + 441827.

It is an arithmetic number, because the mean of its divisors is an integer number (6159351600).

Almost surely, 2^78824321112 is an apocalyptic number.

It is an amenable number.

78824321112 is an abundant number, since it is smaller than the sum of its proper divisors (118274930088).

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

78824321112 is a wasteful number, since it uses less digits than its factorization.

78824321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640815 (or 640811 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

Adding to 78824321112 its reverse (21112342887), we get a palindrome (99936663999).

The spelling of 78824321112 in words is "seventy-eight billion, eight hundred twenty-four million, three hundred twenty-one thousand, one hundred twelve".