85814500349 has 2 divisors, whose sum is σ = 85814500350. Its totient is φ = 85814500348.

The previous prime is 85814500333. The next prime is 85814500357. The reversal of 85814500349 is 94300541858.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50501325625 + 35313174724 = 224725^2 + 187918^2 .

It is a cyclic number.

It is not a de Polignac number, because 85814500349 - 2⁴ = 85814500333 is a prime.

It is a super-2 number, since 2×85814500349² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85814500319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42907250174 + 42907250175.

It is an arithmetic number, because the mean of its divisors is an integer number (42907250175).

Almost surely, 2^85814500349 is an apocalyptic number.

It is an amenable number.

85814500349 is a deficient number, since it is larger than the sum of its proper divisors (1).

85814500349 is an equidigital number, since it uses as much as digits as its factorization.

85814500349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 85814500349 in words is "eighty-five billion, eight hundred fourteen million, five hundred thousand, three hundred forty-nine".