7813000009 has 8 divisors (see below), whose sum is σ = 7885102752. Its totient is φ = 7740949440.

The previous prime is 7813000003. The next prime is 7813000033. The reversal of 7813000009 is 9000003187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7813000009 - 2³ = 7813000001 is a prime.

It is a super-2 number, since 2×7813000009² (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 (7813000001) 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 7 ways as a sum of consecutive naturals, for example, 328762 + ... + 351724.

It is an arithmetic number, because the mean of its divisors is an integer number (985637844).

Almost surely, 2^7813000009 is an apocalyptic number.

It is an amenable number.

7813000009 is a deficient number, since it is larger than the sum of its proper divisors (72102743).

7813000009 is a wasteful number, since it uses less digits than its factorization.

7813000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26087.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 7813000009 is about 88391.1760810999. The cubic root of 7813000009 is about 1984.2936455139.

The spelling of 7813000009 in words is "seven billion, eight hundred thirteen million, nine", and thus it is an aban number.