9964516319 has 4 divisors (see below), whose sum is σ = 10308120360. Its totient is φ = 9620912280.

The previous prime is 9964516307. The next prime is 9964516321. The reversal of 9964516319 is 9136154699.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9964516319 - 2⁸ = 9964516063 is a prime.

It is a super-2 number, since 2×9964516319² (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 (9964513319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171801977 + ... + 171802034.

It is an arithmetic number, because the mean of its divisors is an integer number (2577030090).

Almost surely, 2^9964516319 is an apocalyptic number.

9964516319 is a deficient number, since it is larger than the sum of its proper divisors (343604041).

9964516319 is a wasteful number, since it uses less digits than its factorization.

9964516319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343604040.

The product of its digits is 1574640, while the sum is 53.

The square root of 9964516319 is about 99822.4239286945. The cubic root of 9964516319 is about 2151.8834275996.

The spelling of 9964516319 in words is "nine billion, nine hundred sixty-four million, five hundred sixteen thousand, three hundred nineteen".