6465962543 has 4 divisors (see below), whose sum is σ = 6466393680. Its totient is φ = 6465531408.

The previous prime is 6465962539. The next prime is 6465962549. The reversal of 6465962543 is 3452695646.

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 6465962543 - 2² = 6465962539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6465962491 and 6465962500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465962549) 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, 192230 + ... + 223347.

It is an arithmetic number, because the mean of its divisors is an integer number (1616598420).

Almost surely, 2^6465962543 is an apocalyptic number.

6465962543 is a deficient number, since it is larger than the sum of its proper divisors (431137).

6465962543 is a wasteful number, since it uses less digits than its factorization.

6465962543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431136.

The product of its digits is 4665600, while the sum is 50.

The square root of 6465962543 is about 80411.2090631648. The cubic root of 6465962543 is about 1862.9923067644.

The spelling of 6465962543 in words is "six billion, four hundred sixty-five million, nine hundred sixty-two thousand, five hundred forty-three".