84878055768 has 32 divisors (see below), whose sum is σ = 231485607360. Its totient is φ = 25720622880.

The previous prime is 84878055673. The next prime is 84878055797. The reversal of 84878055768 is 86755087848.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 84878055699 and 84878055708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160753630 + ... + 160754157.

It is an arithmetic number, because the mean of its divisors is an integer number (7233925230).

Almost surely, 2^84878055768 is an apocalyptic number.

84878055768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

84878055768 is an abundant number, since it is smaller than the sum of its proper divisors (146607551592).

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

84878055768 is a wasteful number, since it uses less digits than its factorization.

84878055768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321507807 (or 321507803 counting only the distinct ones).

The product of its (nonzero) digits is 120422400, while the sum is 66.

The spelling of 84878055768 in words is "eighty-four billion, eight hundred seventy-eight million, fifty-five thousand, seven hundred sixty-eight".