858195226349 has 16 divisors (see below), whose sum is σ = 909957411840. Its totient is φ = 807944647680.

The previous prime is 858195226319. The next prime is 858195226351. The reversal of 858195226349 is 943622591858.

It is a cyclic number.

It is not a de Polignac number, because 858195226349 - 2²⁰ = 858194177773 is a prime.

It is a super-2 number, since 2×858195226349² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 858195226291 and 858195226300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858195226319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8159117 + ... + 8263629.

It is an arithmetic number, because the mean of its divisors is an integer number (56872338240).

Almost surely, 2^858195226349 is an apocalyptic number.

It is an amenable number.

858195226349 is a deficient number, since it is larger than the sum of its proper divisors (51762185491).

858195226349 is a wasteful number, since it uses less digits than its factorization.

858195226349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111740.

The product of its digits is 37324800, while the sum is 62.

The spelling of 858195226349 in words is "eight hundred fifty-eight billion, one hundred ninety-five million, two hundred twenty-six thousand, three hundred forty-nine".