2643265064464 has 20 divisors (see below), whose sum is σ = 5121352324204. Its totient is φ = 1321625755008.

The previous prime is 2643265064413. The next prime is 2643265064497. The reversal of 2643265064464 is 4644605623462.

It can be written as a sum of positive squares in 2 ways, for example, as 1418719210000 + 1224545854464 = 1191100^2 + 1106592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4598314 + ... + 5141110.

Almost surely, 2^{2643265064464} is an apocalyptic number.

It is an amenable number.

2643265064464 is a deficient number, since it is larger than the sum of its proper divisors (2478087259740).

2643265064464 is a wasteful number, since it uses less digits than its factorization.

2643265064464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847162 (or 847156 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 52.

The spelling of 2643265064464 in words is "two trillion, six hundred forty-three billion, two hundred sixty-five million, sixty-four thousand, four hundred sixty-four".