7081922909 has 2 divisors, whose sum is σ = 7081922910. Its totient is φ = 7081922908.

The previous prime is 7081922891. The next prime is 7081922921. The reversal of 7081922909 is 9092291807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4861157284 + 2220765625 = 69722^2 + 47125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7081922909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7081922929) 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 as a sum of consecutive naturals, namely, 3540961454 + 3540961455.

It is an arithmetic number, because the mean of its divisors is an integer number (3540961455).

Almost surely, 2^7081922909 is an apocalyptic number.

It is an amenable number.

7081922909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7081922909 is an equidigital number, since it uses as much as digits as its factorization.

7081922909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 7081922909 is about 84154.1615667342. The cubic root of 7081922909 is about 1920.3647770646.

The spelling of 7081922909 in words is "seven billion, eighty-one million, nine hundred twenty-two thousand, nine hundred nine".