9965679481 has 4 divisors (see below), whose sum is σ = 9965891200. Its totient is φ = 9965467764.

The previous prime is 9965679467. The next prime is 9965679487. The reversal of 9965679481 is 1849765699.

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 9965679481 - 2²⁹ = 9428808569 is a prime.

It is a super-2 number, since 2×9965679481² (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 (9965679487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100 + ... + 141178.

It is an arithmetic number, because the mean of its divisors is an integer number (2491472800).

Almost surely, 2^9965679481 is an apocalyptic number.

It is an amenable number.

9965679481 is a deficient number, since it is larger than the sum of its proper divisors (211719).

9965679481 is a wasteful number, since it uses less digits than its factorization.

9965679481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211718.

The product of its digits is 29393280, while the sum is 64.

The square root of 9965679481 is about 99828.2499145407. The cubic root of 9965679481 is about 2151.9671544147.

The spelling of 9965679481 in words is "nine billion, nine hundred sixty-five million, six hundred seventy-nine thousand, four hundred eighty-one".