128381287836037 has 2 divisors, whose sum is σ = 128381287836038. Its totient is φ = 128381287836036.

The previous prime is 128381287835981. The next prime is 128381287836047. The reversal of 128381287836037 is 730638782183821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120910938394401 + 7470349441636 = 10995951^2 + 2733194^2 .

It is a cyclic number.

It is not a de Polignac number, because 128381287836037 - 2³¹ = 128379140352389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128381287836047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64190643918018 + 64190643918019.

It is an arithmetic number, because the mean of its divisors is an integer number (64190643918019).

Almost surely, 2^{128381287836037} is an apocalyptic number.

It is an amenable number.

128381287836037 is a deficient number, since it is larger than the sum of its proper divisors (1).

128381287836037 is an equidigital number, since it uses as much as digits as its factorization.

128381287836037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 128381287836037 in words is "one hundred twenty-eight trillion, three hundred eighty-one billion, two hundred eighty-seven million, eight hundred thirty-six thousand, thirty-seven".