690554263559 has 2 divisors, whose sum is σ = 690554263560. Its totient is φ = 690554263558.

The previous prime is 690554263523. The next prime is 690554263601. The reversal of 690554263559 is 955362455096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690554263559 - 2¹² = 690554259463 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 690554263498 and 690554263507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690554263859) 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, 345277131779 + 345277131780.

It is an arithmetic number, because the mean of its divisors is an integer number (345277131780).

Almost surely, 2^690554263559 is an apocalyptic number.

690554263559 is a deficient number, since it is larger than the sum of its proper divisors (1).

690554263559 is an equidigital number, since it uses as much as digits as its factorization.

690554263559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740000, while the sum is 59.

The spelling of 690554263559 in words is "six hundred ninety billion, five hundred fifty-four million, two hundred sixty-three thousand, five hundred fifty-nine".