2085021352837 has 2 divisors, whose sum is σ = 2085021352838. Its totient is φ = 2085021352836.

The previous prime is 2085021352819. The next prime is 2085021352867. The reversal of 2085021352837 is 7382531205802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1598300249121 + 486721103716 = 1264239^2 + 697654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2085021352837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2085021352867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042510676418 + 1042510676419.

It is an arithmetic number, because the mean of its divisors is an integer number (1042510676419).

Almost surely, 2^{2085021352837} is an apocalyptic number.

It is an amenable number.

2085021352837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085021352837 is an equidigital number, since it uses as much as digits as its factorization.

2085021352837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 2085021352837 in words is "two trillion, eighty-five billion, twenty-one million, three hundred fifty-two thousand, eight hundred thirty-seven".