800680511597 has 2 divisors, whose sum is σ = 800680511598. Its totient is φ = 800680511596.

The previous prime is 800680511593. The next prime is 800680511663. The reversal of 800680511597 is 795115086008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 800557878121 + 122633476 = 894739^2 + 11074^2 .

It is a cyclic number.

It is not a de Polignac number, because 800680511597 - 2² = 800680511593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800680511593) 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, 400340255798 + 400340255799.

It is an arithmetic number, because the mean of its divisors is an integer number (400340255799).

Almost surely, 2^800680511597 is an apocalyptic number.

It is an amenable number.

800680511597 is a deficient number, since it is larger than the sum of its proper divisors (1).

800680511597 is an equidigital number, since it uses as much as digits as its factorization.

800680511597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 50.

The spelling of 800680511597 in words is "eight hundred billion, six hundred eighty million, five hundred eleven thousand, five hundred ninety-seven".