690754541801 has 2 divisors, whose sum is σ = 690754541802. Its totient is φ = 690754541800.

The previous prime is 690754541731. The next prime is 690754541831. The reversal of 690754541801 is 108145457096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582810096400 + 107944445401 = 763420^2 + 328549^2 .

It is a cyclic number.

It is not a de Polignac number, because 690754541801 - 2²⁶ = 690687432937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 690754541801.

It is not a weakly prime, because it can be changed into another prime (690754541831) 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, 345377270900 + 345377270901.

It is an arithmetic number, because the mean of its divisors is an integer number (345377270901).

Almost surely, 2^690754541801 is an apocalyptic number.

It is an amenable number.

690754541801 is a deficient number, since it is larger than the sum of its proper divisors (1).

690754541801 is an equidigital number, since it uses as much as digits as its factorization.

690754541801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

Adding to 690754541801 its reverse (108145457096), we get a palindrome (798899998897).

The spelling of 690754541801 in words is "six hundred ninety billion, seven hundred fifty-four million, five hundred forty-one thousand, eight hundred one".