9644709465 has 24 divisors (see below), whose sum is σ = 16719955200. Its totient is φ = 5143088544.

The previous prime is 9644709463. The next prime is 9644709493. The reversal of 9644709465 is 5649074469.

It is a happy number.

It is not a de Polignac number, because 9644709465 - 2¹ = 9644709463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9644709463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435736 + ... + 457334.

It is an arithmetic number, because the mean of its divisors is an integer number (696664800).

Almost surely, 2^9644709465 is an apocalyptic number.

It is an amenable number.

9644709465 is a deficient number, since it is larger than the sum of its proper divisors (7075245735).

9644709465 is a wasteful number, since it uses less digits than its factorization.

9644709465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31533 (or 31530 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 9644709465 is about 98207.4817160078. The cubic root of 9644709465 is about 2128.6113973836.

The spelling of 9644709465 in words is "nine billion, six hundred forty-four million, seven hundred nine thousand, four hundred sixty-five".