77983802012 has 12 divisors (see below), whose sum is σ = 136477341000. Its totient is φ = 38990276016.

The previous prime is 77983801999. The next prime is 77983802051. The reversal of 77983802012 is 21020838977.

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, 294878 + ... + 492869.

It is an arithmetic number, because the mean of its divisors is an integer number (11373111750).

Almost surely, 2^77983802012 is an apocalyptic number.

It is an amenable number.

77983802012 is a deficient number, since it is larger than the sum of its proper divisors (58493538988).

77983802012 is a wasteful number, since it uses less digits than its factorization.

77983802012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812500 (or 812498 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 77983802012 in words is "seventy-seven billion, nine hundred eighty-three million, eight hundred two thousand, twelve".