498895424557 has 2 divisors, whose sum is σ = 498895424558. Its totient is φ = 498895424556.

The previous prime is 498895424431. The next prime is 498895424561. The reversal of 498895424557 is 755424598894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495417491881 + 3477932676 = 703859^2 + 58974^2 .

It is a cyclic number.

It is not a de Polignac number, because 498895424557 - 2³⁵ = 464535686189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198895424557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249447712278 + 249447712279.

It is an arithmetic number, because the mean of its divisors is an integer number (249447712279).

Almost surely, 2^498895424557 is an apocalyptic number.

It is an amenable number.

498895424557 is a deficient number, since it is larger than the sum of its proper divisors (1).

498895424557 is an equidigital number, since it uses as much as digits as its factorization.

498895424557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608000, while the sum is 70.

The spelling of 498895424557 in words is "four hundred ninety-eight billion, eight hundred ninety-five million, four hundred twenty-four thousand, five hundred fifty-seven".