84858884572 has 96 divisors (see below), whose sum is σ = 192495131136. Its totient is φ = 31773772800.

The previous prime is 84858884519. The next prime is 84858884609. The reversal of 84858884572 is 27548885848.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a junction number, because it is equal to n+sod(n) for n = 84858884498 and 84858884507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795928 + ... + 896224.

It is an arithmetic number, because the mean of its divisors is an integer number (2005157616).

Almost surely, 2^84858884572 is an apocalyptic number.

84858884572 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84858884572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96247565568).

84858884572 is an abundant number, since it is smaller than the sum of its proper divisors (107636246564).

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

84858884572 is a wasteful number, since it uses less digits than its factorization.

84858884572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100427 (or 100425 counting only the distinct ones).

The product of its digits is 183500800, while the sum is 67.

The spelling of 84858884572 in words is "eighty-four billion, eight hundred fifty-eight million, eight hundred eighty-four thousand, five hundred seventy-two".