7969840313 has 4 divisors (see below), whose sum is σ = 8226931968. Its totient is φ = 7712748660.

The previous prime is 7969840303. The next prime is 7969840321. The reversal of 7969840313 is 3130489697.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7969840313 - 2¹⁴ = 7969823929 is a prime.

It is a super-4 number, since 4×7969840313⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7969840303) 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 3 ways as a sum of consecutive naturals, for example, 128545781 + ... + 128545842.

It is an arithmetic number, because the mean of its divisors is an integer number (2056732992).

Almost surely, 2^7969840313 is an apocalyptic number.

It is an amenable number.

7969840313 is a deficient number, since it is larger than the sum of its proper divisors (257091655).

7969840313 is a wasteful number, since it uses less digits than its factorization.

7969840313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257091654.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 7969840313 is about 89273.9621222224. The cubic root of 7969840313 is about 1997.4835277617.

The spelling of 7969840313 in words is "seven billion, nine hundred sixty-nine million, eight hundred forty thousand, three hundred thirteen".