490574128897 has 2 divisors, whose sum is σ = 490574128898. Its totient is φ = 490574128896.

The previous prime is 490574128861. The next prime is 490574128903. The reversal of 490574128897 is 798821475094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347199063696 + 143375065201 = 589236^2 + 378649^2 .

It is a cyclic number.

It is not a de Polignac number, because 490574128897 - 2³⁵ = 456214390529 is a prime.

It is not a weakly prime, because it can be changed into another prime (490574122897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245287064448 + 245287064449.

It is an arithmetic number, because the mean of its divisors is an integer number (245287064449).

Almost surely, 2^490574128897 is an apocalyptic number.

It is an amenable number.

490574128897 is a deficient number, since it is larger than the sum of its proper divisors (1).

490574128897 is an equidigital number, since it uses as much as digits as its factorization.

490574128897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 490574128897 in words is "four hundred ninety billion, five hundred seventy-four million, one hundred twenty-eight thousand, eight hundred ninety-seven".