499993238401 has 2 divisors, whose sum is σ = 499993238402. Its totient is φ = 499993238400.

The previous prime is 499993238387. The next prime is 499993238441. The reversal of 499993238401 is 104832399994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297853977600 + 202139260801 = 545760^2 + 449599^2 .

It is a cyclic number.

It is not a de Polignac number, because 499993238401 - 2⁷ = 499993238273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499993238401.

It is not a weakly prime, because it can be changed into another prime (499993238441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249996619200 + 249996619201.

It is an arithmetic number, because the mean of its divisors is an integer number (249996619201).

Almost surely, 2^499993238401 is an apocalyptic number.

It is an amenable number.

499993238401 is a deficient number, since it is larger than the sum of its proper divisors (1).

499993238401 is an equidigital number, since it uses as much as digits as its factorization.

499993238401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 499993238401 in words is "four hundred ninety-nine billion, nine hundred ninety-three million, two hundred thirty-eight thousand, four hundred one".