72563313243 has 4 divisors (see below), whose sum is σ = 96751084328. Its totient is φ = 48375542160.

The previous prime is 72563313233. The next prime is 72563313253. The reversal of 72563313243 is 34231336527.

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

It is an interprime number because it is at equal distance from previous prime (72563313233) and next prime (72563313253).

It is not a de Polignac number, because 72563313243 - 2⁴ = 72563313227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72563313233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12093885538 + ... + 12093885543.

It is an arithmetic number, because the mean of its divisors is an integer number (24187771082).

Almost surely, 2^72563313243 is an apocalyptic number.

72563313243 is a deficient number, since it is larger than the sum of its proper divisors (24187771085).

72563313243 is a wasteful number, since it uses less digits than its factorization.

72563313243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24187771084.

The product of its digits is 272160, while the sum is 39.

The spelling of 72563313243 in words is "seventy-two billion, five hundred sixty-three million, three hundred thirteen thousand, two hundred forty-three".