85269806519 has 2 divisors, whose sum is σ = 85269806520. Its totient is φ = 85269806518.

The previous prime is 85269806459. The next prime is 85269806521. The reversal of 85269806519 is 91560896258.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85269806519 is a prime.

It is a super-2 number, since 2×85269806519² (a number of 23 digits) contains 22 as substring.

Together with 85269806521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85269806599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42634903259 + 42634903260.

It is an arithmetic number, because the mean of its divisors is an integer number (42634903260).

Almost surely, 2^85269806519 is an apocalyptic number.

85269806519 is a deficient number, since it is larger than the sum of its proper divisors (1).

85269806519 is an equidigital number, since it uses as much as digits as its factorization.

85269806519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 85269806519 in words is "eighty-five billion, two hundred sixty-nine million, eight hundred six thousand, five hundred nineteen".