581076612197 has 2 divisors, whose sum is σ = 581076612198. Its totient is φ = 581076612196.

The previous prime is 581076612173. The next prime is 581076612239. The reversal of 581076612197 is 791216670185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553939321441 + 27137290756 = 744271^2 + 164734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-581076612197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581076612157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290538306098 + 290538306099.

It is an arithmetic number, because the mean of its divisors is an integer number (290538306099).

Almost surely, 2^581076612197 is an apocalyptic number.

It is an amenable number.

581076612197 is a deficient number, since it is larger than the sum of its proper divisors (1).

581076612197 is an equidigital number, since it uses as much as digits as its factorization.

581076612197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 581076612197 in words is "five hundred eighty-one billion, seventy-six million, six hundred twelve thousand, one hundred ninety-seven".