78624782012 has 36 divisors (see below), whose sum is σ = 160094201400. Its totient is φ = 33688628064.

The previous prime is 78624781973. The next prime is 78624782023. The reversal of 78624782012 is 21028742687.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 858614 + ... + 945762.

It is an arithmetic number, because the mean of its divisors is an integer number (4447061150).

Almost surely, 2^78624782012 is an apocalyptic number.

It is an amenable number.

78624782012 is an abundant number, since it is smaller than the sum of its proper divisors (81469419388).

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

78624782012 is a wasteful number, since it uses less digits than its factorization.

78624782012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91770 (or 91761 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

It can be divided in two parts, 7862 and 4782012, that added together give a palindrome (4789874).

The spelling of 78624782012 in words is "seventy-eight billion, six hundred twenty-four million, seven hundred eighty-two thousand, twelve".