499804423673 has 2 divisors, whose sum is σ = 499804423674. Its totient is φ = 499804423672.

The previous prime is 499804423619. The next prime is 499804423711. The reversal of 499804423673 is 376324408994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323985224809 + 175819198864 = 569197^2 + 419308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499804423673 is a prime.

It is not a weakly prime, because it can be changed into another prime (499804423273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249902211836 + 249902211837.

It is an arithmetic number, because the mean of its divisors is an integer number (249902211837).

Almost surely, 2^499804423673 is an apocalyptic number.

It is an amenable number.

499804423673 is a deficient number, since it is larger than the sum of its proper divisors (1).

499804423673 is an equidigital number, since it uses as much as digits as its factorization.

499804423673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 59.

The spelling of 499804423673 in words is "four hundred ninety-nine billion, eight hundred four million, four hundred twenty-three thousand, six hundred seventy-three".