23753641697 has 16 divisors (see below), whose sum is σ = 26131928400. Its totient is φ = 21491097600.

The previous prime is 23753641619. The next prime is 23753641741. The reversal of 23753641697 is 79614635732.

It can be written as a sum of positive squares in 8 ways, for example, as 3972906961 + 19780734736 = 63031^2 + 140644^2 .

It is a cyclic number.

It is not a de Polignac number, because 23753641697 - 2⁸ = 23753641441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23753641607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7697 + ... + 218097.

It is an arithmetic number, because the mean of its divisors is an integer number (1633245525).

Almost surely, 2^23753641697 is an apocalyptic number.

It is an amenable number.

23753641697 is a deficient number, since it is larger than the sum of its proper divisors (2378286703).

23753641697 is a wasteful number, since it uses less digits than its factorization.

23753641697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210676.

The product of its digits is 5715360, while the sum is 53.

The spelling of 23753641697 in words is "twenty-three billion, seven hundred fifty-three million, six hundred forty-one thousand, six hundred ninety-seven".