77799342224 has 10 divisors (see below), whose sum is σ = 150736225590. Its totient is φ = 38899671104.

The previous prime is 77799342223. The next prime is 77799342319. The reversal of 77799342224 is 42224399777.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50745671824 + 27053670400 = 225268^2 + 164480^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 77799342224.

It is not an unprimeable number, because it can be changed into a prime (77799342223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2431229429 + ... + 2431229460.

It is an arithmetic number, because the mean of its divisors is an integer number (15073622559).

Almost surely, 2^77799342224 is an apocalyptic number.

It is an amenable number.

77799342224 is a deficient number, since it is larger than the sum of its proper divisors (72936883366).

77799342224 is a wasteful number, since it uses less digits than its factorization.

77799342224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862458897 (or 4862458891 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 56.

The spelling of 77799342224 in words is "seventy-seven billion, seven hundred ninety-nine million, three hundred forty-two thousand, two hundred twenty-four".