499386728929 has 27 divisors (see below), whose sum is σ = 583255360051. Its totient is φ = 427169695040.

The previous prime is 499386728909. The next prime is 499386728933. The reversal of 499386728929 is 929827683994.

The square root of 499386728929 is 706673.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 388795896225 + 110590832704 = 623535^2 + 332552^2 .

It is not a de Polignac number, because 499386728929 - 2²⁷ = 499252511201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499386728909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 132145962 + ... + 132149740.

Almost surely, 2^499386728929 is an apocalyptic number.

499386728929 is the 706673-rd square number.

499386728929 is the 353337-th centered octagonal number.

It is an amenable number.

499386728929 is a deficient number, since it is larger than the sum of its proper divisors (83868631122).

499386728929 is an frugal number, since it uses more digits than its factorization.

499386728929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614 (or 3807 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 76.

The spelling of 499386728929 in words is "four hundred ninety-nine billion, three hundred eighty-six million, seven hundred twenty-eight thousand, nine hundred twenty-nine".