84678359275776 has 144 divisors (see below), whose sum is σ = 257570438436864. Its totient is φ = 24193150420992.

The previous prime is 84678359275753. The next prime is 84678359275831. The reversal of 84678359275776 is 67757295387648.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214751635 + ... + 215145581.

It is an arithmetic number, because the mean of its divisors is an integer number (1788683600256).

Almost surely, 2^{84678359275776} is an apocalyptic number.

It is an amenable number.

84678359275776 is an abundant number, since it is smaller than the sum of its proper divisors (172892079161088).

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

84678359275776 is a wasteful number, since it uses less digits than its factorization.

84678359275776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433956 (or 433942 counting only the distinct ones).

The product of its digits is 29872281600, while the sum is 84.

The spelling of 84678359275776 in words is "eighty-four trillion, six hundred seventy-eight billion, three hundred fifty-nine million, two hundred seventy-five thousand, seven hundred seventy-six".