24257057989 has 2 divisors, whose sum is σ = 24257057990. Its totient is φ = 24257057988.

The previous prime is 24257057977. The next prime is 24257058017. The reversal of 24257057989 is 98975075242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21269888964 + 2987169025 = 145842^2 + 54655^2 .

It is a cyclic number.

It is not a de Polignac number, because 24257057989 - 2⁹ = 24257057477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24257058989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12128528994 + 12128528995.

It is an arithmetic number, because the mean of its divisors is an integer number (12128528995).

Almost surely, 2^24257057989 is an apocalyptic number.

It is an amenable number.

24257057989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24257057989 is an equidigital number, since it uses as much as digits as its factorization.

24257057989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 24257057989 in words is "twenty-four billion, two hundred fifty-seven million, fifty-seven thousand, nine hundred eighty-nine".