128744622640001 has 2 divisors, whose sum is σ = 128744622640002. Its totient is φ = 128744622640000.

The previous prime is 128744622639989. The next prime is 128744622640009. The reversal of 128744622640001 is 100046226447821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119480202490000 + 9264420150001 = 10930700^2 + 3043751^2 .

It is a cyclic number.

It is not a de Polignac number, because 128744622640001 - 2¹⁸ = 128744622377857 is a prime.

It is not a weakly prime, because it can be changed into another prime (128744622640009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64372311320000 + 64372311320001.

It is an arithmetic number, because the mean of its divisors is an integer number (64372311320001).

Almost surely, 2^{128744622640001} is an apocalyptic number.

It is an amenable number.

128744622640001 is a deficient number, since it is larger than the sum of its proper divisors (1).

128744622640001 is an equidigital number, since it uses as much as digits as its factorization.

128744622640001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 128744622640001 in words is "one hundred twenty-eight trillion, seven hundred forty-four billion, six hundred twenty-two million, six hundred forty thousand, one".