23531445697 has 2 divisors, whose sum is σ = 23531445698. Its totient is φ = 23531445696.

The previous prime is 23531445563. The next prime is 23531445709. The reversal of 23531445697 is 79654413532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23145362496 + 386083201 = 152136^2 + 19649^2 .

It is a cyclic number.

It is not a de Polignac number, because 23531445697 - 2¹⁹ = 23530921409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23531445697.

It is not a weakly prime, because it can be changed into another prime (23531445097) 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, 11765722848 + 11765722849.

It is an arithmetic number, because the mean of its divisors is an integer number (11765722849).

Almost surely, 2^23531445697 is an apocalyptic number.

It is an amenable number.

23531445697 is a deficient number, since it is larger than the sum of its proper divisors (1).

23531445697 is an equidigital number, since it uses as much as digits as its factorization.

23531445697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 49.

The spelling of 23531445697 in words is "twenty-three billion, five hundred thirty-one million, four hundred forty-five thousand, six hundred ninety-seven".