503378442008 has 64 divisors (see below), whose sum is σ = 1035702709440. Its totient is φ = 227957981184.

The previous prime is 503378442001. The next prime is 503378442053. The reversal of 503378442008 is 800244873305.

It is a self number, because there is not a number n which added to its sum of digits gives 503378442008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503378442001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1293485 + ... + 1637027.

It is an arithmetic number, because the mean of its divisors is an integer number (16182854835).

Almost surely, 2^503378442008 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 503378442008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517851354720).

503378442008 is an abundant number, since it is smaller than the sum of its proper divisors (532324267432).

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

503378442008 is a wasteful number, since it uses less digits than its factorization.

503378442008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343828 (or 343824 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 503378442008 in words is "five hundred three billion, three hundred seventy-eight million, four hundred forty-two thousand, eight".