2643265064465 has 32 divisors (see below), whose sum is σ = 3224443852800. Its totient is φ = 2079745113600.

The previous prime is 2643265064413. The next prime is 2643265064497. The reversal of 2643265064465 is 5644605623462.

It is not a de Polignac number, because 2643265064465 - 2¹⁰ = 2643265063441 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 460737077 + ... + 460742813.

It is an arithmetic number, because the mean of its divisors is an integer number (100763870400).

Almost surely, 2^{2643265064465} is an apocalyptic number.

It is an amenable number.

2643265064465 is a deficient number, since it is larger than the sum of its proper divisors (581178788335).

2643265064465 is a wasteful number, since it uses less digits than its factorization.

2643265064465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8753.

The product of its (nonzero) digits is 24883200, while the sum is 53.

The spelling of 2643265064465 in words is "two trillion, six hundred forty-three billion, two hundred sixty-five million, sixty-four thousand, four hundred sixty-five".