128441825893 has 2 divisors, whose sum is σ = 128441825894. Its totient is φ = 128441825892.

The previous prime is 128441825851. The next prime is 128441825921. The reversal of 128441825893 is 398528144821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74104817284 + 54337008609 = 272222^2 + 233103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128441825893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128441825693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64220912946 + 64220912947.

It is an arithmetic number, because the mean of its divisors is an integer number (64220912947).

Almost surely, 2^128441825893 is an apocalyptic number.

It is an amenable number.

128441825893 is a deficient number, since it is larger than the sum of its proper divisors (1).

128441825893 is an equidigital number, since it uses as much as digits as its factorization.

128441825893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4423680, while the sum is 55.

The spelling of 128441825893 in words is "one hundred twenty-eight billion, four hundred forty-one million, eight hundred twenty-five thousand, eight hundred ninety-three".