128830401577 has 2 divisors, whose sum is σ = 128830401578. Its totient is φ = 128830401576.

The previous prime is 128830401571. The next prime is 128830401587. The reversal of 128830401577 is 775104038821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86189803561 + 42640598016 = 293581^2 + 206496^2 .

It is a cyclic number.

It is not a de Polignac number, because 128830401577 - 2²⁷ = 128696183849 is a prime.

It is not a weakly prime, because it can be changed into another prime (128830401571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64415200788 + 64415200789.

It is an arithmetic number, because the mean of its divisors is an integer number (64415200789).

Almost surely, 2^128830401577 is an apocalyptic number.

It is an amenable number.

128830401577 is a deficient number, since it is larger than the sum of its proper divisors (1).

128830401577 is an equidigital number, since it uses as much as digits as its factorization.

128830401577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 128830401577 in words is "one hundred twenty-eight billion, eight hundred thirty million, four hundred one thousand, five hundred seventy-seven".