7969931713 has 6 divisors (see below), whose sum is σ = 7993765446. Its totient is φ = 7946168832.

The previous prime is 7969931647. The next prime is 7969931747. The reversal of 7969931713 is 3171399697.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 168272784 + 7801658929 = 12972^2 + 88327^2 .

It is not a de Polignac number, because 7969931713 - 2²¹ = 7967834561 is a prime.

It is a super-2 number, since 2×7969931713² (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 (7969931773) 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, 78481 + ... + 148657.

It is an arithmetic number, because the mean of its divisors is an integer number (1332294241).

Almost surely, 2^7969931713 is an apocalyptic number.

It is an amenable number.

7969931713 is a deficient number, since it is larger than the sum of its proper divisors (23833733).

7969931713 is an frugal number, since it uses more digits than its factorization.

7969931713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70851 (or 70514 counting only the distinct ones).

The product of its digits is 1928934, while the sum is 55.

The square root of 7969931713 is about 89274.4740281342. The cubic root of 7969931713 is about 1997.4911636026.

The spelling of 7969931713 in words is "seven billion, nine hundred sixty-nine million, nine hundred thirty-one thousand, seven hundred thirteen".