499638065522 has 6 divisors (see below), whose sum is σ = 749458597743. Its totient is φ = 249818532942.

The previous prime is 499638065503. The next prime is 499638065579. The reversal of 499638065522 is 225560836994.

It can be written as a sum of positive squares in only one way, i.e., 249819032761 + 249819032761 = 499819^2 + 499819^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=499819.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 749729 + ... + 1249547.

Almost surely, 2^499638065522 is an apocalyptic number.

499638065522 is a deficient number, since it is larger than the sum of its proper divisors (249820532221).

499638065522 is an frugal number, since it uses more digits than its factorization.

499638065522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999640 (or 499821 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 59.

The spelling of 499638065522 in words is "four hundred ninety-nine billion, six hundred thirty-eight million, sixty-five thousand, five hundred twenty-two".