77212194696 has 96 divisors (see below), whose sum is σ = 257374004160. Its totient is φ = 20363654016.

The previous prime is 77212194677. The next prime is 77212194713. The reversal of 77212194696 is 69649121277.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5885710 + ... + 5898813.

It is an arithmetic number, because the mean of its divisors is an integer number (2680979210).

Almost surely, 2^77212194696 is an apocalyptic number.

It is an amenable number.

77212194696 is an abundant number, since it is smaller than the sum of its proper divisors (180161809464).

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

77212194696 is a wasteful number, since it uses less digits than its factorization.

77212194696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784555 (or 11784548 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The spelling of 77212194696 in words is "seventy-seven billion, two hundred twelve million, one hundred ninety-four thousand, six hundred ninety-six".