8190260209 has 4 divisors (see below), whose sum is σ = 8190972580. Its totient is φ = 8189547840.

The previous prime is 8190260207. The next prime is 8190260219. The reversal of 8190260209 is 9020620918.

8190260209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5373623025 + 2816637184 = 73305^2 + 53072^2 .

It is a cyclic number.

It is not a de Polignac number, because 8190260209 - 2¹ = 8190260207 is a prime.

It is a super-2 number, since 2×8190260209² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8190260201) 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, 338652 + ... + 362029.

It is an arithmetic number, because the mean of its divisors is an integer number (2047743145).

Almost surely, 2^8190260209 is an apocalyptic number.

It is an amenable number.

8190260209 is a deficient number, since it is larger than the sum of its proper divisors (712371).

8190260209 is a wasteful number, since it uses less digits than its factorization.

8190260209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712370.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 8190260209 is about 90500.0564032973. The cubic root of 8190260209 is about 2015.7309614400.

The spelling of 8190260209 in words is "eight billion, one hundred ninety million, two hundred sixty thousand, two hundred nine".