23945390969 has 2 divisors, whose sum is σ = 23945390970. Its totient is φ = 23945390968.

The previous prime is 23945390933. The next prime is 23945390971. The reversal of 23945390969 is 96909354932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22380160000 + 1565230969 = 149600^2 + 39563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23945390969 is a prime.

It is a super-3 number, since 3×23945390969³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 23945390971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23945390569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11972695484 + 11972695485.

It is an arithmetic number, because the mean of its divisors is an integer number (11972695485).

Almost surely, 2^23945390969 is an apocalyptic number.

It is an amenable number.

23945390969 is a deficient number, since it is larger than the sum of its proper divisors (1).

23945390969 is an equidigital number, since it uses as much as digits as its factorization.

23945390969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14171760, while the sum is 59.

The spelling of 23945390969 in words is "twenty-three billion, nine hundred forty-five million, three hundred ninety thousand, nine hundred sixty-nine".