85837093021 has 8 divisors (see below), whose sum is σ = 88161394904. Its totient is φ = 83513021760.

The previous prime is 85837092989. The next prime is 85837093031. The reversal of 85837093021 is 12039073858.

It can be written as a sum of positive squares in 4 ways, for example, as 11575392921 + 74261700100 = 107589^2 + 272510^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85837093021 - 2⁵ = 85837092989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85837093031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 916651 + ... + 1005943.

It is an arithmetic number, because the mean of its divisors is an integer number (11020174363).

Almost surely, 2^85837093021 is an apocalyptic number.

It is an amenable number.

85837093021 is a deficient number, since it is larger than the sum of its proper divisors (2324301883).

85837093021 is a wasteful number, since it uses less digits than its factorization.

85837093021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115311.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 85837093021 in words is "eighty-five billion, eight hundred thirty-seven million, ninety-three thousand, twenty-one".