858441668425 has 12 divisors (see below), whose sum is σ = 1161237457296. Its totient is φ = 624321213200.

The previous prime is 858441668419. The next prime is 858441668453. The reversal of 858441668425 is 524866144858.

It is a happy number.

It is not a de Polignac number, because 858441668425 - 2³³ = 849851733833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1560802759 + ... + 1560803308.

It is an arithmetic number, because the mean of its divisors is an integer number (96769788108).

Almost surely, 2^858441668425 is an apocalyptic number.

It is an amenable number.

858441668425 is a deficient number, since it is larger than the sum of its proper divisors (302795788871).

858441668425 is a wasteful number, since it uses less digits than its factorization.

858441668425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121606088 (or 3121606083 counting only the distinct ones).

The product of its digits is 58982400, while the sum is 61.

The spelling of 858441668425 in words is "eight hundred fifty-eight billion, four hundred forty-one million, six hundred sixty-eight thousand, four hundred twenty-five".