503384309748 has 120 divisors (see below), whose sum is σ = 1335538812608. Its totient is φ = 165301928064.

The previous prime is 503384309711. The next prime is 503384309749. The reversal of 503384309748 is 847903483305.

503384309748 is a `hidden beast` number, since 50 + 3 + 38 + 430 + 97 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 503384309694 and 503384309703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503384309749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20872665 + ... + 20896767.

Almost surely, 2^503384309748 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 503384309748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667769406304).

503384309748 is an abundant number, since it is smaller than the sum of its proper divisors (832154502860).

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

503384309748 is a wasteful number, since it uses less digits than its factorization.

503384309748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25075 (or 25064 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 503384309748 in words is "five hundred three billion, three hundred eighty-four million, three hundred nine thousand, seven hundred forty-eight".