490858996577 has 2 divisors, whose sum is σ = 490858996578. Its totient is φ = 490858996576.

The previous prime is 490858996541. The next prime is 490858996583. The reversal of 490858996577 is 775699858094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366271881616 + 124587114961 = 605204^2 + 352969^2 .

It is a cyclic number.

It is not a de Polignac number, because 490858996577 - 2²⁸ = 490590561121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 490858996498 and 490858996507.

It is not a weakly prime, because it can be changed into another prime (490858996517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245429498288 + 245429498289.

It is an arithmetic number, because the mean of its divisors is an integer number (245429498289).

Almost surely, 2^490858996577 is an apocalyptic number.

It is an amenable number.

490858996577 is a deficient number, since it is larger than the sum of its proper divisors (1).

490858996577 is an equidigital number, since it uses as much as digits as its factorization.

490858996577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1371686400, while the sum is 77.

The spelling of 490858996577 in words is "four hundred ninety billion, eight hundred fifty-eight million, nine hundred ninety-six thousand, five hundred seventy-seven".