9696966857 has 4 divisors (see below), whose sum is σ = 9737203476. Its totient is φ = 9656730240.

The previous prime is 9696966817. The next prime is 9696966887. The reversal of 9696966857 is 7586696969.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7586696969 = 2381 ⋅3186349.

It can be written as a sum of positive squares in 2 ways, for example, as 6756182416 + 2940784441 = 82196^2 + 54229^2 .

It is a cyclic number.

It is not a de Polignac number, because 9696966857 - 2¹² = 9696962761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9696966817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20117948 + ... + 20118429.

It is an arithmetic number, because the mean of its divisors is an integer number (2434300869).

Almost surely, 2^9696966857 is an apocalyptic number.

It is an amenable number.

9696966857 is a deficient number, since it is larger than the sum of its proper divisors (40236619).

9696966857 is a wasteful number, since it uses less digits than its factorization.

9696966857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40236618.

The product of its digits is 264539520, while the sum is 71.

The square root of 9696966857 is about 98473.1783634508. The cubic root of 9696966857 is about 2132.4489203447.

The spelling of 9696966857 in words is "nine billion, six hundred ninety-six million, nine hundred sixty-six thousand, eight hundred fifty-seven".