84678168592 has 80 divisors (see below), whose sum is σ = 177571491840. Its totient is φ = 38997787136.

The previous prime is 84678168577. The next prime is 84678168599. The reversal of 84678168592 is 29586187648.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84678168599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4077018 + ... + 4097734.

It is an arithmetic number, because the mean of its divisors is an integer number (2219643648).

Almost surely, 2^84678168592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84678168592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88785745920).

84678168592 is an abundant number, since it is smaller than the sum of its proper divisors (92893323248).

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

84678168592 is a wasteful number, since it uses less digits than its factorization.

84678168592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21160 (or 21154 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 64.

The spelling of 84678168592 in words is "eighty-four billion, six hundred seventy-eight million, one hundred sixty-eight thousand, five hundred ninety-two".