499353997537 has 4 divisors (see below), whose sum is σ = 528727762116. Its totient is φ = 469980232960.

The previous prime is 499353997507. The next prime is 499353997559. The reversal of 499353997537 is 735799353994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 467704164321 + 31649833216 = 683889^2 + 177904^2 .

It is a cyclic number.

It is not a de Polignac number, because 499353997537 - 2³¹ = 497206513889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499353997537.

It is not an unprimeable number, because it can be changed into a prime (499353997507) 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 3 ways as a sum of consecutive naturals, for example, 14686882264 + ... + 14686882297.

It is an arithmetic number, because the mean of its divisors is an integer number (132181940529).

Almost surely, 2^499353997537 is an apocalyptic number.

It is an amenable number.

499353997537 is a deficient number, since it is larger than the sum of its proper divisors (29373764579).

499353997537 is a wasteful number, since it uses less digits than its factorization.

499353997537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29373764578.

The product of its digits is 868020300, while the sum is 73.

The spelling of 499353997537 in words is "four hundred ninety-nine billion, three hundred fifty-three million, nine hundred ninety-seven thousand, five hundred thirty-seven".