23041345549 has 2 divisors, whose sum is σ = 23041345550. Its totient is φ = 23041345548.

The previous prime is 23041345511. The next prime is 23041345631. The reversal of 23041345549 is 94554314032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18128737449 + 4912608100 = 134643^2 + 70090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23041345549 is a prime.

It is a super-2 number, since 2×23041345549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23041340549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520672774 + 11520672775.

It is an arithmetic number, because the mean of its divisors is an integer number (11520672775).

Almost surely, 2^23041345549 is an apocalyptic number.

It is an amenable number.

23041345549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23041345549 is an equidigital number, since it uses as much as digits as its factorization.

23041345549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 23041345549 in words is "twenty-three billion, forty-one million, three hundred forty-five thousand, five hundred forty-nine".