8195819451 has 16 divisors (see below), whose sum is σ = 11058094080. Its totient is φ = 5398796480.

The previous prime is 8195819447. The next prime is 8195819473. The reversal of 8195819451 is 1549185918.

8195819451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8195819451 - 2² = 8195819447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8195819394 and 8195819403.

It is not an unprimeable number, because it can be changed into a prime (8195819431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412966 + ... + 432356.

It is an arithmetic number, because the mean of its divisors is an integer number (691130880).

Almost surely, 2^8195819451 is an apocalyptic number.

8195819451 is a deficient number, since it is larger than the sum of its proper divisors (2862274629).

8195819451 is a wasteful number, since it uses less digits than its factorization.

8195819451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21066.

The product of its digits is 518400, while the sum is 51.

The square root of 8195819451 is about 90530.7652182395. The cubic root of 8195819451 is about 2016.1869258620.

The spelling of 8195819451 in words is "eight billion, one hundred ninety-five million, eight hundred nineteen thousand, four hundred fifty-one".