500738403920 has 20 divisors (see below), whose sum is σ = 1164216789300. Its totient is φ = 200295361536.

The previous prime is 500738403887. The next prime is 500738404003. The reversal of 500738403920 is 29304837005.

It can be written as a sum of positive squares in 2 ways, for example, as 153294174784 + 347444229136 = 391528^2 + 589444^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 3129614945 + ... + 3129615104.

It is an arithmetic number, because the mean of its divisors is an integer number (58210839465).

Almost surely, 2^500738403920 is an apocalyptic number.

It is an amenable number.

500738403920 is an abundant number, since it is smaller than the sum of its proper divisors (663478385380).

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

500738403920 is a wasteful number, since it uses less digits than its factorization.

500738403920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259230062 (or 6259230056 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 500738403920 in words is "five hundred billion, seven hundred thirty-eight million, four hundred three thousand, nine hundred twenty".