9688968421 has 32 divisors (see below), whose sum is σ = 10957326336. Its totient is φ = 8491392000.

The previous prime is 9688968403. The next prime is 9688968427. The reversal of 9688968421 is 1248698869.

It is a cyclic number.

It is not a de Polignac number, because 9688968421 - 2⁹ = 9688967909 is a prime.

It is a super-2 number, since 2×9688968421² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9688968421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9688968427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16791685 + ... + 16792261.

It is an arithmetic number, because the mean of its divisors is an integer number (342416448).

Almost surely, 2^9688968421 is an apocalyptic number.

It is an amenable number.

9688968421 is a deficient number, since it is larger than the sum of its proper divisors (1268357915).

9688968421 is a wasteful number, since it uses less digits than its factorization.

9688968421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its digits is 11943936, while the sum is 61.

The square root of 9688968421 is about 98432.5577286296. The cubic root of 9688968421 is about 2131.8624500883.

The spelling of 9688968421 in words is "nine billion, six hundred eighty-eight million, nine hundred sixty-eight thousand, four hundred twenty-one".