128733626146837 has 2 divisors, whose sum is σ = 128733626146838. Its totient is φ = 128733626146836.

The previous prime is 128733626146781. The next prime is 128733626146919. The reversal of 128733626146837 is 738641626337821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85637145273156 + 43096480873681 = 9254034^2 + 6564791^2 .

It is an emirp because it is prime and its reverse (738641626337821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128733626146837 - 2⁷ = 128733626146709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128733626146337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64366813073418 + 64366813073419.

It is an arithmetic number, because the mean of its divisors is an integer number (64366813073419).

Almost surely, 2^{128733626146837} is an apocalyptic number.

It is an amenable number.

128733626146837 is a deficient number, since it is larger than the sum of its proper divisors (1).

128733626146837 is an equidigital number, since it uses as much as digits as its factorization.

128733626146837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 292626432, while the sum is 67.

The spelling of 128733626146837 in words is "one hundred twenty-eight trillion, seven hundred thirty-three billion, six hundred twenty-six million, one hundred forty-six thousand, eight hundred thirty-seven".