697909409416 has 16 divisors (see below), whose sum is σ = 1353703596300. Its totient is φ = 336921783744.

The previous prime is 697909409411. The next prime is 697909409423. The reversal of 697909409416 is 614904909796.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 691209332100 + 6700077316 = 831390^2 + 81854^2 .

It is a super-2 number, since 2×697909409416² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (697909409411) 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 in 3 ways as a sum of consecutive naturals, for example, 1504114875 + ... + 1504115338.

Almost surely, 2^697909409416 is an apocalyptic number.

It is an amenable number.

697909409416 is a deficient number, since it is larger than the sum of its proper divisors (655794186884).

697909409416 is a wasteful number, since it uses less digits than its factorization.

697909409416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008230248 (or 3008230244 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 697909409416 in words is "six hundred ninety-seven billion, nine hundred nine million, four hundred nine thousand, four hundred sixteen".