4644134314465 has 16 divisors (see below), whose sum is σ = 5653777242960. Its totient is φ = 3661747937280.

The previous prime is 4644134314453. The next prime is 4644134314487. The reversal of 4644134314465 is 5644134314464.

It can be written as a sum of positive squares in 8 ways, for example, as 512313809121 + 4131820505344 = 715761^2 + 2032688^2 .

It is not a de Polignac number, because 4644134314465 - 2¹⁵ = 4644134281697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19749370 + ... + 19983139.

It is an arithmetic number, because the mean of its divisors is an integer number (353361077685).

Almost surely, 2^{4644134314465} is an apocalyptic number.

It is an amenable number.

4644134314465 is a deficient number, since it is larger than the sum of its proper divisors (1009642928495).

4644134314465 is a wasteful number, since it uses less digits than its factorization.

4644134314465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39732852.

The product of its digits is 6635520, while the sum is 49.

Subtracting 4644134314465 from its reverse (5644134314464), we obtain a palindrome (999999999999).

The spelling of 4644134314465 in words is "four trillion, six hundred forty-four billion, one hundred thirty-four million, three hundred fourteen thousand, four hundred sixty-five".