8419355939 has 4 divisors (see below), whose sum is σ = 8534689656. Its totient is φ = 8304022224.

The previous prime is 8419355929. The next prime is 8419355941. The reversal of 8419355939 is 9395539148.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8419355939 - 2³² = 4124388643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8419355929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57666749 + ... + 57666894.

It is an arithmetic number, because the mean of its divisors is an integer number (2133672414).

Almost surely, 2^8419355939 is an apocalyptic number.

8419355939 is a deficient number, since it is larger than the sum of its proper divisors (115333717).

8419355939 is a wasteful number, since it uses less digits than its factorization.

8419355939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115333716.

The product of its digits is 5248800, while the sum is 56.

The square root of 8419355939 is about 91757.0484431578. The cubic root of 8419355939 is about 2034.3528893656.

The spelling of 8419355939 in words is "eight billion, four hundred nineteen million, three hundred fifty-five thousand, nine hundred thirty-nine".