72809223283 has 2 divisors, whose sum is σ = 72809223284. Its totient is φ = 72809223282.

The previous prime is 72809223281. The next prime is 72809223287. The reversal of 72809223283 is 38232290827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72809223283 - 2¹ = 72809223281 is a prime.

Together with 72809223281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72809223281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36404611641 + 36404611642.

It is an arithmetic number, because the mean of its divisors is an integer number (36404611642).

Almost surely, 2^72809223283 is an apocalyptic number.

72809223283 is a deficient number, since it is larger than the sum of its proper divisors (1).

72809223283 is an equidigital number, since it uses as much as digits as its factorization.

72809223283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 72809223283 in words is "seventy-two billion, eight hundred nine million, two hundred twenty-three thousand, two hundred eighty-three".