499396993920 has 768 divisors, whose sum is σ = 2049889593600. Its totient is φ = 113931878400.

The previous prime is 499396993861. The next prime is 499396993933. The reversal of 499396993920 is 29399693994.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54928575 + ... + 54937665.

It is an arithmetic number, because the mean of its divisors is an integer number (2669127075).

Almost surely, 2^499396993920 is an apocalyptic number.

499396993920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499396993920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024944796800).

499396993920 is an abundant number, since it is smaller than the sum of its proper divisors (1550492599680).

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

499396993920 is a wasteful number, since it uses less digits than its factorization.

499396993920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9164 (or 9129 counting only the distinct ones).

The product of its (nonzero) digits is 229582512, while the sum is 72.

The spelling of 499396993920 in words is "four hundred ninety-nine billion, three hundred ninety-six million, nine hundred ninety-three thousand, nine hundred twenty".