23209889039 has 2 divisors, whose sum is σ = 23209889040. Its totient is φ = 23209889038.

The previous prime is 23209888987. The next prime is 23209889077. The reversal of 23209889039 is 93098890232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23209889039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23209889089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11604944519 + 11604944520.

It is an arithmetic number, because the mean of its divisors is an integer number (11604944520).

Almost surely, 2^23209889039 is an apocalyptic number.

23209889039 is a deficient number, since it is larger than the sum of its proper divisors (1).

23209889039 is an equidigital number, since it uses as much as digits as its factorization.

23209889039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 23209889039 in words is "twenty-three billion, two hundred nine million, eight hundred eighty-nine thousand, thirty-nine".