84678833912 has 8 divisors (see below), whose sum is σ = 158772813600. Its totient is φ = 42339416952.

The previous prime is 84678833873. The next prime is 84678833917. The reversal of 84678833912 is 21933887648.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84678833917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5292427112 + ... + 5292427127.

It is an arithmetic number, because the mean of its divisors is an integer number (19846601700).

Almost surely, 2^84678833912 is an apocalyptic number.

It is an amenable number.

84678833912 is a deficient number, since it is larger than the sum of its proper divisors (74093979688).

84678833912 is a wasteful number, since it uses less digits than its factorization.

84678833912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10584854245 (or 10584854241 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 59.

The spelling of 84678833912 in words is "eighty-four billion, six hundred seventy-eight million, eight hundred thirty-three thousand, nine hundred twelve".