12964441465 has 8 divisors (see below), whose sum is σ = 15558224328. Its totient is φ = 10370956800.

The previous prime is 12964441463. The next prime is 12964441481. The reversal of 12964441465 is 56414446921.

It can be written as a sum of positive squares in 4 ways, for example, as 729648144 + 12234793321 = 27012^2 + 110611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12964441465 - 2¹ = 12964441463 is a prime.

It is a super-2 number, since 2×12964441465² (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 (12964441463) 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 7 ways as a sum of consecutive naturals, for example, 36009 + ... + 165001.

It is an arithmetic number, because the mean of its divisors is an integer number (1944778041).

Almost surely, 2^12964441465 is an apocalyptic number.

It is an amenable number.

12964441465 is a deficient number, since it is larger than the sum of its proper divisors (2593782863).

12964441465 is a wasteful number, since it uses less digits than its factorization.

12964441465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149099.

The product of its digits is 829440, while the sum is 46.

The spelling of 12964441465 in words is "twelve billion, nine hundred sixty-four million, four hundred forty-one thousand, four hundred sixty-five".