82854490219 has 2 divisors, whose sum is σ = 82854490220. Its totient is φ = 82854490218.

The previous prime is 82854490211. The next prime is 82854490357. The reversal of 82854490219 is 91209445828.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82854490219 - 2³ = 82854490211 is a prime.

It is a super-2 number, since 2×82854490219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82854490211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41427245109 + 41427245110.

It is an arithmetic number, because the mean of its divisors is an integer number (41427245110).

Almost surely, 2^82854490219 is an apocalyptic number.

82854490219 is a deficient number, since it is larger than the sum of its proper divisors (1).

82854490219 is an equidigital number, since it uses as much as digits as its factorization.

82854490219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 82854490219 in words is "eighty-two billion, eight hundred fifty-four million, four hundred ninety thousand, two hundred nineteen".