503511610868 has 96 divisors (see below), whose sum is σ = 1047218135040. Its totient is φ = 207283639680.

The previous prime is 503511610817. The next prime is 503511610879. The reversal of 503511610868 is 868016115305.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 254426303 + ... + 254428281.

It is an arithmetic number, because the mean of its divisors is an integer number (10908522240).

Almost surely, 2^503511610868 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 503511610868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523609067520).

503511610868 is an abundant number, since it is smaller than the sum of its proper divisors (543706524172).

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

503511610868 is a wasteful number, since it uses less digits than its factorization.

503511610868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4043 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 503511610868 in words is "five hundred three billion, five hundred eleven million, six hundred ten thousand, eight hundred sixty-eight".