499703011920 has 320 divisors, whose sum is σ = 1976420167680. Its totient is φ = 113675788800.

The previous prime is 499703011909. The next prime is 499703011931. The reversal of 499703011920 is 29110307994.

499703011920 is a `hidden beast` number, since 4 + 99 + 70 + 301 + 192 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (499703011909) and next prime (499703011931).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 3112005 + ... + 3268635.

It is an arithmetic number, because the mean of its divisors is an integer number (6176313024).

Almost surely, 2^499703011920 is an apocalyptic number.

499703011920 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 499703011920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988210083840).

499703011920 is an abundant number, since it is smaller than the sum of its proper divisors (1476717155760).

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

499703011920 is a wasteful number, since it uses less digits than its factorization.

499703011920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156871 (or 156859 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 499703011920 in words is "four hundred ninety-nine billion, seven hundred three million, eleven thousand, nine hundred twenty".