71623030433 has 2 divisors, whose sum is σ = 71623030434. Its totient is φ = 71623030432.

The previous prime is 71623030417. The next prime is 71623030487. The reversal of 71623030433 is 33403032617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53207726224 + 18415304209 = 230668^2 + 135703^2 .

It is a cyclic number.

It is not a de Polignac number, because 71623030433 - 2⁴ = 71623030417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71623030433.

It is not a weakly prime, because it can be changed into another prime (71623030033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35811515216 + 35811515217.

It is an arithmetic number, because the mean of its divisors is an integer number (35811515217).

Almost surely, 2^71623030433 is an apocalyptic number.

It is an amenable number.

71623030433 is a deficient number, since it is larger than the sum of its proper divisors (1).

71623030433 is an equidigital number, since it uses as much as digits as its factorization.

71623030433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 32.

The spelling of 71623030433 in words is "seventy-one billion, six hundred twenty-three million, thirty thousand, four hundred thirty-three".