23455240489 has 2 divisors, whose sum is σ = 23455240490. Its totient is φ = 23455240488.

The previous prime is 23455240483. The next prime is 23455240511. The reversal of 23455240489 is 98404255432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13134306025 + 10320934464 = 114605^2 + 101592^2 .

It is a cyclic number.

It is not a de Polignac number, because 23455240489 - 2³ = 23455240481 is a prime.

It is not a weakly prime, because it can be changed into another prime (23455240481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11727620244 + 11727620245.

It is an arithmetic number, because the mean of its divisors is an integer number (11727620245).

Almost surely, 2^23455240489 is an apocalyptic number.

It is an amenable number.

23455240489 is a deficient number, since it is larger than the sum of its proper divisors (1).

23455240489 is an equidigital number, since it uses as much as digits as its factorization.

23455240489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 23455240489 in words is "twenty-three billion, four hundred fifty-five million, two hundred forty thousand, four hundred eighty-nine".