7922313909 has 6 divisors (see below), whose sum is σ = 11443342326. Its totient is φ = 5281542600.

The previous prime is 7922313863. The next prime is 7922313943. The reversal of 7922313909 is 9093132297.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7152084900 + 770229009 = 84570^2 + 27753^2 .

It is not a de Polignac number, because 7922313909 - 2¹³ = 7922305717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7922313979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 440128542 + ... + 440128559.

It is an arithmetic number, because the mean of its divisors is an integer number (1907223721).

Almost surely, 2^7922313909 is an apocalyptic number.

It is an amenable number.

7922313909 is a deficient number, since it is larger than the sum of its proper divisors (3521028417).

7922313909 is a wasteful number, since it uses less digits than its factorization.

7922313909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880257107 (or 880257104 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 7922313909 is about 89007.3812051562. The cubic root of 7922313909 is about 1993.5050899870.

The spelling of 7922313909 in words is "seven billion, nine hundred twenty-two million, three hundred thirteen thousand, nine hundred nine".