498775999973 has 2 divisors, whose sum is σ = 498775999974. Its totient is φ = 498775999972.

The previous prime is 498775999921. The next prime is 498776000027. The reversal of 498775999973 is 379999577894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425647941889 + 73128058084 = 652417^2 + 270422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498775999973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498775999573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249387999986 + 249387999987.

It is an arithmetic number, because the mean of its divisors is an integer number (249387999987).

Almost surely, 2^498775999973 is an apocalyptic number.

It is an amenable number.

498775999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

498775999973 is an equidigital number, since it uses as much as digits as its factorization.

498775999973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9721827360, while the sum is 86.

The spelling of 498775999973 in words is "four hundred ninety-eight billion, seven hundred seventy-five million, nine hundred ninety-nine thousand, nine hundred seventy-three".