7944616580 has 12 divisors (see below), whose sum is σ = 16683694860. Its totient is φ = 3177846624.

The previous prime is 7944616549. The next prime is 7944616633. The reversal of 7944616580 is 856164497.

It can be written as a sum of positive squares in 2 ways, for example, as 5662261504 + 2282355076 = 75248^2 + 47774^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198615395 + ... + 198615434.

It is an arithmetic number, because the mean of its divisors is an integer number (1390307905).

Almost surely, 2^7944616580 is an apocalyptic number.

It is an amenable number.

7944616580 is an abundant number, since it is smaller than the sum of its proper divisors (8739078280).

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

7944616580 is a wasteful number, since it uses less digits than its factorization.

7944616580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397230838 (or 397230836 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 7944616580 is about 89132.5786679596. The cubic root of 7944616580 is about 1995.3740234199.

The spelling of 7944616580 in words is "seven billion, nine hundred forty-four million, six hundred sixteen thousand, five hundred eighty".