23550443999 has 2 divisors, whose sum is σ = 23550444000. Its totient is φ = 23550443998.

The previous prime is 23550443977. The next prime is 23550444061. The reversal of 23550443999 is 99934405532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23550443999 - 2²⁰ = 23549395423 is a prime.

It is a super-2 number, since 2×23550443999² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23550443999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23550443299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11775221999 + 11775222000.

It is an arithmetic number, because the mean of its divisors is an integer number (11775222000).

Almost surely, 2^23550443999 is an apocalyptic number.

23550443999 is a deficient number, since it is larger than the sum of its proper divisors (1).

23550443999 is an equidigital number, since it uses as much as digits as its factorization.

23550443999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5248800, while the sum is 53.

The spelling of 23550443999 in words is "twenty-three billion, five hundred fifty million, four hundred forty-three thousand, nine hundred ninety-nine".