7975665797 has 16 divisors (see below), whose sum is σ = 8822919168. Its totient is φ = 7149124080.

The previous prime is 7975665773. The next prime is 7975665839.

7975665797 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7975665797 - 2¹⁶ = 7975600261 is a prime.

It is a super-2 number, since 2×7975665797² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7975665497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469148 + ... + 485850.

It is an arithmetic number, because the mean of its divisors is an integer number (551432448).

Almost surely, 2^7975665797 is an apocalyptic number.

It is an amenable number.

7975665797 is a deficient number, since it is larger than the sum of its proper divisors (847253371).

7975665797 is a wasteful number, since it uses less digits than its factorization.

7975665797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17320.

The product of its digits is 175032900, while the sum is 68.

The square root of 7975665797 is about 89306.5831671999. The cubic root of 7975665797 is about 1997.9700901801.

The spelling of 7975665797 in words is "seven billion, nine hundred seventy-five million, six hundred sixty-five thousand, seven hundred ninety-seven".