85029836724 has 96 divisors (see below), whose sum is σ = 252525772800.
Its totient is φ = 24237779040.
The previous prime is 85029836719. The next prime is 85029836741. The reversal of 85029836724 is 42763892058.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
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 31 ways as a sum of consecutive naturals, for example, 195357 + ... + 456315.
It is an arithmetic number, because the mean of its divisors is an integer number (2630476800).
Almost surely, 285029836724 is an apocalyptic number.
85029836724 is a gapful number since it is divisible by the number (84) 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 85029836724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126262886400).
85029836724 is an abundant number, since it is smaller than the sum of its proper divisors (167495936076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85029836724 is a wasteful number, since it uses less digits than its factorization.
85029836724 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 261410 (or 261402 counting only the distinct ones).
The product of its (nonzero) digits is 5806080, while the sum is 54.
The spelling of 85029836724 in words is "eighty-five billion, twenty-nine million, eight hundred thirty-six thousand, seven hundred twenty-four".