23291898653 has 2 divisors, whose sum is σ = 23291898654. Its totient is φ = 23291898652.

The previous prime is 23291898631. The next prime is 23291898671. The reversal of 23291898653 is 35689819232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20148950809 + 3142947844 = 141947^2 + 56062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23291898653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23291898673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11645949326 + 11645949327.

It is an arithmetic number, because the mean of its divisors is an integer number (11645949327).

Almost surely, 2^23291898653 is an apocalyptic number.

It is an amenable number.

23291898653 is a deficient number, since it is larger than the sum of its proper divisors (1).

23291898653 is an equidigital number, since it uses as much as digits as its factorization.

23291898653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 56.

The spelling of 23291898653 in words is "twenty-three billion, two hundred ninety-one million, eight hundred ninety-eight thousand, six hundred fifty-three".