499969254816 has 120 divisors (see below), whose sum is σ = 1470842604000. Its totient is φ = 166605766272.

The previous prime is 499969254797. The next prime is 499969254859. The reversal of 499969254816 is 618452969994.

499969254816 is a `hidden beast` number, since 4 + 9 + 9 + 9 + 69 + 2 + 548 + 16 = 666.

It is a super-2 number, since 2×499969254816² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9041845 + ... + 9096971.

It is an arithmetic number, because the mean of its divisors is an integer number (12257021700).

Almost surely, 2^499969254816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499969254816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735421302000).

499969254816 is an abundant number, since it is smaller than the sum of its proper divisors (970873349184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499969254816 is a wasteful number, since it uses less digits than its factorization.

499969254816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58648 (or 58631 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 72.

The spelling of 499969254816 in words is "four hundred ninety-nine billion, nine hundred sixty-nine million, two hundred fifty-four thousand, eight hundred sixteen".