8195693904 has 90 divisors (see below), whose sum is σ = 23093580510. Its totient is φ = 2713321728.

The previous prime is 8195693903. The next prime is 8195693911. The reversal of 8195693904 is 4093965918.

8195693904 is a `hidden beast` number, since 8 + 195 + 69 + 390 + 4 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1030410000 + 7165283904 = 32100^2 + 84648^2 .

It is a super-2 number, since 2×8195693904² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8195693903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3548302 + ... + 3550610.

It is an arithmetic number, because the mean of its divisors is an integer number (256595339).

Almost surely, 2^8195693904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8195693904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11546790255).

8195693904 is an abundant number, since it is smaller than the sum of its proper divisors (14897886606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8195693904 is a wasteful number, since it uses less digits than its factorization.

8195693904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 8195693904 is about 90530.0718214671. The cubic root of 8195693904 is about 2016.1766308771.

The spelling of 8195693904 in words is "eight billion, one hundred ninety-five million, six hundred ninety-three thousand, nine hundred four".