78656334752 has 24 divisors (see below), whose sum is σ = 155034986400. Its totient is φ = 39282369984.

The previous prime is 78656334737. The next prime is 78656334773. The reversal of 78656334752 is 25743365687.

78656334752 is nontrivially palindromic in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403252 + ... + 1458227.

It is an arithmetic number, because the mean of its divisors is an integer number (6459791100).

Almost surely, 2^78656334752 is an apocalyptic number.

It is an amenable number.

78656334752 is a deficient number, since it is larger than the sum of its proper divisors (76378651648).

78656334752 is a wasteful number, since it uses less digits than its factorization.

78656334752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862348 (or 2862340 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 56.

The spelling of 78656334752 in words is "seventy-eight billion, six hundred fifty-six million, three hundred thirty-four thousand, seven hundred fifty-two".