491933412233 has 2 divisors, whose sum is σ = 491933412234. Its totient is φ = 491933412232.

The previous prime is 491933412181. The next prime is 491933412247. The reversal of 491933412233 is 332214339194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338342315584 + 153591096649 = 581672^2 + 391907^2 .

It is a cyclic number.

It is not a de Polignac number, because 491933412233 - 2¹⁸ = 491933150089 is a prime.

It is not a weakly prime, because it can be changed into another prime (491933412293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245966706116 + 245966706117.

It is an arithmetic number, because the mean of its divisors is an integer number (245966706117).

Almost surely, 2^491933412233 is an apocalyptic number.

It is an amenable number.

491933412233 is a deficient number, since it is larger than the sum of its proper divisors (1).

491933412233 is an equidigital number, since it uses as much as digits as its factorization.

491933412233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 44.

The spelling of 491933412233 in words is "four hundred ninety-one billion, nine hundred thirty-three million, four hundred twelve thousand, two hundred thirty-three".