2405128061789 has 2 divisors, whose sum is σ = 2405128061790. Its totient is φ = 2405128061788.

The previous prime is 2405128061761. The next prime is 2405128061813. The reversal of 2405128061789 is 9871608215042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2396087284900 + 9040776889 = 1547930^2 + 95083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405128061789 - 2¹⁶ = 2405127996253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2405128061789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2405128061989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202564030894 + 1202564030895.

It is an arithmetic number, because the mean of its divisors is an integer number (1202564030895).

Almost surely, 2^{2405128061789} is an apocalyptic number.

It is an amenable number.

2405128061789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405128061789 is an equidigital number, since it uses as much as digits as its factorization.

2405128061789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 2405128061789 in words is "two trillion, four hundred five billion, one hundred twenty-eight million, sixty-one thousand, seven hundred eighty-nine".