811480652617 has 2 divisors, whose sum is σ = 811480652618. Its totient is φ = 811480652616.

The previous prime is 811480652603. The next prime is 811480652621. The reversal of 811480652617 is 716256084118.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811478474041 + 2178576 = 900821^2 + 1476^2 .

It is a cyclic number.

It is not a de Polignac number, because 811480652617 - 2¹¹ = 811480650569 is a prime.

It is not a weakly prime, because it can be changed into another prime (811480659617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405740326308 + 405740326309.

It is an arithmetic number, because the mean of its divisors is an integer number (405740326309).

Almost surely, 2^811480652617 is an apocalyptic number.

It is an amenable number.

811480652617 is a deficient number, since it is larger than the sum of its proper divisors (1).

811480652617 is an equidigital number, since it uses as much as digits as its factorization.

811480652617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 811480652617 in words is "eight hundred eleven billion, four hundred eighty million, six hundred fifty-two thousand, six hundred seventeen".