498974493109 has 2 divisors, whose sum is σ = 498974493110. Its totient is φ = 498974493108.

The previous prime is 498974493089. The next prime is 498974493137. The reversal of 498974493109 is 901394479894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415054197009 + 83920296100 = 644247^2 + 289690^2 .

It is a cyclic number.

It is not a de Polignac number, because 498974493109 - 2¹⁹ = 498973968821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498974493139) 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, 249487246554 + 249487246555.

It is an arithmetic number, because the mean of its divisors is an integer number (249487246555).

Almost surely, 2^498974493109 is an apocalyptic number.

It is an amenable number.

498974493109 is a deficient number, since it is larger than the sum of its proper divisors (1).

498974493109 is an equidigital number, since it uses as much as digits as its factorization.

498974493109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70543872, while the sum is 67.

The spelling of 498974493109 in words is "four hundred ninety-eight billion, nine hundred seventy-four million, four hundred ninety-three thousand, one hundred nine".