77647456222 has 16 divisors (see below), whose sum is σ = 133247600640. Its totient is φ = 33243062328.

The previous prime is 77647456217. The next prime is 77647456267. The reversal of 77647456222 is 22265474677.

It is a super-4 number, since 4×77647456222⁴ (a number of 45 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77647456222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2854222 + ... + 2881297.

It is an arithmetic number, because the mean of its divisors is an integer number (8327975040).

Almost surely, 2^77647456222 is an apocalyptic number.

77647456222 is a deficient number, since it is larger than the sum of its proper divisors (55600144418).

77647456222 is a wasteful number, since it uses less digits than its factorization.

77647456222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736495.

The product of its digits is 7902720, while the sum is 52.

The spelling of 77647456222 in words is "seventy-seven billion, six hundred forty-seven million, four hundred fifty-six thousand, two hundred twenty-two".