23990269543 has 2 divisors, whose sum is σ = 23990269544. Its totient is φ = 23990269542.

The previous prime is 23990269519. The next prime is 23990269571. The reversal of 23990269543 is 34596209932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23990269543 - 2³³ = 15400334951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20990269543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11995134771 + 11995134772.

It is an arithmetic number, because the mean of its divisors is an integer number (11995134772).

Almost surely, 2^23990269543 is an apocalyptic number.

23990269543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23990269543 is an equidigital number, since it uses as much as digits as its factorization.

23990269543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 23990269543 in words is "twenty-three billion, nine hundred ninety million, two hundred sixty-nine thousand, five hundred forty-three".