499983396637 has 2 divisors, whose sum is σ = 499983396638. Its totient is φ = 499983396636.

The previous prime is 499983396599. The next prime is 499983396701. The reversal of 499983396637 is 736693389994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382036484281 + 117946912356 = 618091^2 + 343434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499983396637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499183396637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249991698318 + 249991698319.

It is an arithmetic number, because the mean of its divisors is an integer number (249991698319).

Almost surely, 2^499983396637 is an apocalyptic number.

It is an amenable number.

499983396637 is a deficient number, since it is larger than the sum of its proper divisors (1).

499983396637 is an equidigital number, since it uses as much as digits as its factorization.

499983396637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428513408, while the sum is 76.

The spelling of 499983396637 in words is "four hundred ninety-nine billion, nine hundred eighty-three million, three hundred ninety-six thousand, six hundred thirty-seven".