697874068369 has 2 divisors, whose sum is σ = 697874068370. Its totient is φ = 697874068368.

The previous prime is 697874068361. The next prime is 697874068427. The reversal of 697874068369 is 963860478796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697538995344 + 335073025 = 835188^2 + 18305^2 .

It is a cyclic number.

It is not a de Polignac number, because 697874068369 - 2³ = 697874068361 is a prime.

It is a super-2 number, since 2×697874068369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (697874068361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348937034184 + 348937034185.

It is an arithmetic number, because the mean of its divisors is an integer number (348937034185).

Almost surely, 2^697874068369 is an apocalyptic number.

It is an amenable number.

697874068369 is a deficient number, since it is larger than the sum of its proper divisors (1).

697874068369 is an equidigital number, since it uses as much as digits as its factorization.

697874068369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658409472, while the sum is 73.

The spelling of 697874068369 in words is "six hundred ninety-seven billion, eight hundred seventy-four million, sixty-eight thousand, three hundred sixty-nine".