6462720263 has 4 divisors (see below), whose sum is σ = 6466176288. Its totient is φ = 6459264240.

The previous prime is 6462720223. The next prime is 6462720269. The reversal of 6462720263 is 3620272646.

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 6462720263 - 2²⁶ = 6395611399 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 (6462720269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725206 + ... + 1728947.

It is an arithmetic number, because the mean of its divisors is an integer number (1616544072).

Almost surely, 2^6462720263 is an apocalyptic number.

6462720263 is a deficient number, since it is larger than the sum of its proper divisors (3456025).

6462720263 is a wasteful number, since it uses less digits than its factorization.

6462720263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456024.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 6462720263 is about 80391.0459130866. The cubic root of 6462720263 is about 1862.6808629251.

The spelling of 6462720263 in words is "six billion, four hundred sixty-two million, seven hundred twenty thousand, two hundred sixty-three".