77299846812 has 36 divisors (see below), whose sum is σ = 195422838520. Its totient is φ = 25763186592.

The previous prime is 77299846697. The next prime is 77299846831. The reversal of 77299846812 is 21864899277.

77299846812 is a `hidden beast` number, since 7 + 72 + 9 + 98 + 468 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77299846812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139014 + ... + 417042.

Almost surely, 2^77299846812 is an apocalyptic number.

It is a pronic number, being equal to 278028×278029.

It is an amenable number.

77299846812 is an abundant number, since it is smaller than the sum of its proper divisors (118122991708).

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

77299846812 is a wasteful number, since it uses less digits than its factorization.

77299846812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285762 (or 285757 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 77299846812 in words is "seventy-seven billion, two hundred ninety-nine million, eight hundred forty-six thousand, eight hundred twelve".