581179092493 has 2 divisors, whose sum is σ = 581179092494. Its totient is φ = 581179092492.

The previous prime is 581179092451. The next prime is 581179092511. The reversal of 581179092493 is 394290971185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539089287529 + 42089804964 = 734227^2 + 205158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-581179092493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581179099493) 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, 290589546246 + 290589546247.

It is an arithmetic number, because the mean of its divisors is an integer number (290589546247).

Almost surely, 2^581179092493 is an apocalyptic number.

It is an amenable number.

581179092493 is a deficient number, since it is larger than the sum of its proper divisors (1).

581179092493 is an equidigital number, since it uses as much as digits as its factorization.

581179092493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 581179092493 in words is "five hundred eighty-one billion, one hundred seventy-nine million, ninety-two thousand, four hundred ninety-three".