2643595463 has 4 divisors (see below), whose sum is σ = 2728872768. Its totient is φ = 2558318160.

The previous prime is 2643595447. The next prime is 2643595553. The reversal of 2643595463 is 3645953462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2643595463 - 2⁴ = 2643595447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643595403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42638606 + ... + 42638667.

It is an arithmetic number, because the mean of its divisors is an integer number (682218192).

Almost surely, 2^2643595463 is an apocalyptic number.

2643595463 is a deficient number, since it is larger than the sum of its proper divisors (85277305).

2643595463 is an equidigital number, since it uses as much as digits as its factorization.

2643595463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85277304.

The product of its digits is 2332800, while the sum is 47.

The square root of 2643595463 is about 51415.9067118338. The cubic root of 2643595463 is about 1382.7117899437.

The spelling of 2643595463 in words is "two billion, six hundred forty-three million, five hundred ninety-five thousand, four hundred sixty-three".