85337021872 has 80 divisors (see below), whose sum is σ = 179271338400. Its totient is φ = 39195426816.

The previous prime is 85337021863. The next prime is 85337021873. The reversal of 85337021872 is 27812073358.

It is not an unprimeable number, because it can be changed into a prime (85337021873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27987004 + ... + 27990052.

It is an arithmetic number, because the mean of its divisors is an integer number (2240891730).

Almost surely, 2^85337021872 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 85337021872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89635669200).

85337021872 is an abundant number, since it is smaller than the sum of its proper divisors (93934316528).

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

85337021872 is a wasteful number, since it uses less digits than its factorization.

85337021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510 (or 5504 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 85337021872 in words is "eighty-five billion, three hundred thirty-seven million, twenty-one thousand, eight hundred seventy-two".