77287855196 has 12 divisors (see below), whose sum is σ = 135501015048. Its totient is φ = 38573279472.

The previous prime is 77287855181. The next prime is 77287855217. The reversal of 77287855196 is 69155878277.

It is a congruent number.

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, 17659571 + ... + 17663946.

It is an arithmetic number, because the mean of its divisors is an integer number (11291751254).

Almost surely, 2^77287855196 is an apocalyptic number.

It is an amenable number.

77287855196 is a deficient number, since it is larger than the sum of its proper divisors (58213159852).

77287855196 is a wasteful number, since it uses less digits than its factorization.

77287855196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35324068 (or 35324066 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 65.

The spelling of 77287855196 in words is "seventy-seven billion, two hundred eighty-seven million, eight hundred fifty-five thousand, one hundred ninety-six".