82698568697 has 2 divisors, whose sum is σ = 82698568698. Its totient is φ = 82698568696.

The previous prime is 82698568657. The next prime is 82698568717. The reversal of 82698568697 is 79686589628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46243921936 + 36454646761 = 215044^2 + 190931^2 .

It is a cyclic number.

It is not a de Polignac number, because 82698568697 - 2¹⁰ = 82698567673 is a prime.

It is not a weakly prime, because it can be changed into another prime (82698568627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41349284348 + 41349284349.

It is an arithmetic number, because the mean of its divisors is an integer number (41349284349).

Almost surely, 2^82698568697 is an apocalyptic number.

It is an amenable number.

82698568697 is a deficient number, since it is larger than the sum of its proper divisors (1).

82698568697 is an equidigital number, since it uses as much as digits as its factorization.

82698568697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 627056640, while the sum is 74.

The spelling of 82698568697 in words is "eighty-two billion, six hundred ninety-eight million, five hundred sixty-eight thousand, six hundred ninety-seven".