499999712179529 has 8 divisors (see below), whose sum is σ = 521016563916360. Its totient is φ = 479234559266176.

The previous prime is 499999712179489. The next prime is 499999712179549. The reversal of 499999712179529 is 925971217999994.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5915728179529 + 494083984000000 = 2432227^2 + 22228000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499999712179529 is a prime.

It is a super-2 number, since 2×499999712179529² (a number of 30 digits) contains 22 as substring.

It is a pancake number, because a pancake can be divided into 499999712179529 parts by 31622767 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499999712179549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62924701814 + ... + 62924709759.

It is an arithmetic number, because the mean of its divisors is an integer number (65127070489545).

Almost surely, 2^{499999712179529} is an apocalyptic number.

It is an amenable number.

499999712179529 is a deficient number, since it is larger than the sum of its proper divisors (21016851736831).

499999712179529 is a wasteful number, since it uses less digits than its factorization.

499999712179529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125849411739.

The product of its digits is 18749238480, while the sum is 92.

The spelling of 499999712179529 in words is "four hundred ninety-nine trillion, nine hundred ninety-nine billion, seven hundred twelve million, one hundred seventy-nine thousand, five hundred twenty-nine".