690654533017 has 2 divisors, whose sum is σ = 690654533018. Its totient is φ = 690654533016.

The previous prime is 690654532991. The next prime is 690654533069. The reversal of 690654533017 is 710335456096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626613144921 + 64041388096 = 791589^2 + 253064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690654533017 is a prime.

It is not a weakly prime, because it can be changed into another prime (690654530017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345327266508 + 345327266509.

It is an arithmetic number, because the mean of its divisors is an integer number (345327266509).

Almost surely, 2^690654533017 is an apocalyptic number.

It is an amenable number.

690654533017 is a deficient number, since it is larger than the sum of its proper divisors (1).

690654533017 is an equidigital number, since it uses as much as digits as its factorization.

690654533017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 690654533017 in words is "six hundred ninety billion, six hundred fifty-four million, five hundred thirty-three thousand, seventeen".