78644350096 has 45 divisors (see below), whose sum is σ = 165026679339. Its totient is φ = 36290661888.

The previous prime is 78644350079. The next prime is 78644350111. The reversal of 78644350096 is 69005344687.

The square root of 78644350096 is 280436.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2424183696 + 76220166400 = 49236^2 + 276080^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14579976 + ... + 14585368.

Almost surely, 2^78644350096 is an apocalyptic number.

78644350096 is the 280436-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78644350096

78644350096 is an abundant number, since it is smaller than the sum of its proper divisors (86382329243).

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

78644350096 is an frugal number, since it uses more digits than its factorization.

78644350096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10820 (or 5408 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 78644350096 in words is "seventy-eight billion, six hundred forty-four million, three hundred fifty thousand, ninety-six".