8369398945 has 16 divisors (see below), whose sum is σ = 10643650560. Its totient is φ = 6295981824.

The previous prime is 8369398937. The next prime is 8369398957. The reversal of 8369398945 is 5498939638.

It is not a de Polignac number, because 8369398945 - 2³ = 8369398937 is a prime.

It is a super-3 number, since 3×8369398945³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51616 + ... + 139294.

It is an arithmetic number, because the mean of its divisors is an integer number (665228160).

Almost surely, 2^8369398945 is an apocalyptic number.

8369398945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8369398945 is a deficient number, since it is larger than the sum of its proper divisors (2274251615).

8369398945 is a wasteful number, since it uses less digits than its factorization.

8369398945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88824.

The product of its digits is 50388480, while the sum is 64.

The square root of 8369398945 is about 91484.4191379057. The cubic root of 8369398945 is about 2030.3212337542.

The spelling of 8369398945 in words is "eight billion, three hundred sixty-nine million, three hundred ninety-eight thousand, nine hundred forty-five".