850299019 has 2 divisors, whose sum is σ = 850299020. Its totient is φ = 850299018.

The previous prime is 850299017. The next prime is 850299067. The reversal of 850299019 is 910992058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 850299019 - 2¹ = 850299017 is a prime.

It is a super-2 number, since 2×850299019² = 1446016843424724722, which contains 22 as substring.

Together with 850299017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (850299011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425149509 + 425149510.

It is an arithmetic number, because the mean of its divisors is an integer number (425149510).

Almost surely, 2^850299019 is an apocalyptic number.

850299019 is a deficient number, since it is larger than the sum of its proper divisors (1).

850299019 is an equidigital number, since it uses as much as digits as its factorization.

850299019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 850299019 is about 29159.8871568461. The cubic root of 850299019 is about 947.3793030654.

The spelling of 850299019 in words is "eight hundred fifty million, two hundred ninety-nine thousand, nineteen".