85840002019 has 2 divisors, whose sum is σ = 85840002020. Its totient is φ = 85840002018.

The previous prime is 85840001983. The next prime is 85840002097. The reversal of 85840002019 is 91020004858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85840002019 - 2²⁹ = 85303131107 is a prime.

It is a super-2 number, since 2×85840002019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85840002319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42920001009 + 42920001010.

It is an arithmetic number, because the mean of its divisors is an integer number (42920001010).

Almost surely, 2^85840002019 is an apocalyptic number.

85840002019 is a deficient number, since it is larger than the sum of its proper divisors (1).

85840002019 is an equidigital number, since it uses as much as digits as its factorization.

85840002019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 85840002019 in words is "eighty-five billion, eight hundred forty million, two thousand, nineteen".