24870406889 has 2 divisors, whose sum is σ = 24870406890. Its totient is φ = 24870406888.

The previous prime is 24870406867. The next prime is 24870406919. The reversal of 24870406889 is 98860407842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16426267225 + 8444139664 = 128165^2 + 91892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24870406889 is a prime.

It is not a weakly prime, because it can be changed into another prime (24875406889) 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, 12435203444 + 12435203445.

It is an arithmetic number, because the mean of its divisors is an integer number (12435203445).

Almost surely, 2^24870406889 is an apocalyptic number.

It is an amenable number.

24870406889 is a deficient number, since it is larger than the sum of its proper divisors (1).

24870406889 is an equidigital number, since it uses as much as digits as its factorization.

24870406889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 24870406889 in words is "twenty-four billion, eight hundred seventy million, four hundred six thousand, eight hundred eighty-nine".