64465013313 has 12 divisors (see below), whose sum is σ = 93200108820. Its totient is φ = 42937916256.

The previous prime is 64465013273. The next prime is 64465013323. The reversal of 64465013313 is 31331056446.

64465013313 is a `hidden beast` number, since 64 + 465 + 0 + 133 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11230064784 + 53234948529 = 105972^2 + 230727^2 .

It is not a de Polignac number, because 64465013313 - 2¹⁶ = 64464947777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64465013323) 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 11 ways as a sum of consecutive naturals, for example, 3219406 + ... + 3239367.

It is an arithmetic number, because the mean of its divisors is an integer number (7766675735).

Almost surely, 2^64465013313 is an apocalyptic number.

It is an amenable number.

64465013313 is a deficient number, since it is larger than the sum of its proper divisors (28735095507).

64465013313 is a wasteful number, since it uses less digits than its factorization.

64465013313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459888 (or 6459885 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 64465013313 its reverse (31331056446), we get a palindrome (95796069759).

The spelling of 64465013313 in words is "sixty-four billion, four hundred sixty-five million, thirteen thousand, three hundred thirteen".