71800503353 has 2 divisors, whose sum is σ = 71800503354. Its totient is φ = 71800503352.

The previous prime is 71800503329. The next prime is 71800503371. The reversal of 71800503353 is 35330500817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71798274304 + 2229049 = 267952^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 71800503353 - 2¹² = 71800499257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (71800503553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35900251676 + 35900251677.

It is an arithmetic number, because the mean of its divisors is an integer number (35900251677).

Almost surely, 2^71800503353 is an apocalyptic number.

It is an amenable number.

71800503353 is a deficient number, since it is larger than the sum of its proper divisors (1).

71800503353 is an equidigital number, since it uses as much as digits as its factorization.

71800503353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 71800503353 in words is "seventy-one billion, eight hundred million, five hundred three thousand, three hundred fifty-three".