77912223386 has 16 divisors (see below), whose sum is σ = 117049429728. Its totient is φ = 38895778800.

The previous prime is 77912223383. The next prime is 77912223391. The reversal of 77912223386 is 68332221977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77912223383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7282301 + ... + 7292991.

It is an arithmetic number, because the mean of its divisors is an integer number (7315589358).

Almost surely, 2^77912223386 is an apocalyptic number.

77912223386 is a deficient number, since it is larger than the sum of its proper divisors (39137206342).

77912223386 is a wasteful number, since it uses less digits than its factorization.

77912223386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997.

The product of its digits is 1524096, while the sum is 50.

The spelling of 77912223386 in words is "seventy-seven billion, nine hundred twelve million, two hundred twenty-three thousand, three hundred eighty-six".