51303317760 has 288 divisors, whose sum is σ = 183739248000. Its totient is φ = 13554376704.

The previous prime is 51303317719. The next prime is 51303317773. The reversal of 51303317760 is 6771330315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3760231 + ... + 3773849.

It is an arithmetic number, because the mean of its divisors is an integer number (637983500).

Almost surely, 2^51303317760 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 51303317760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91869624000).

51303317760 is an abundant number, since it is smaller than the sum of its proper divisors (132435930240).

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

51303317760 is a wasteful number, since it uses less digits than its factorization.

51303317760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13758 (or 13738 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The spelling of 51303317760 in words is "fifty-one billion, three hundred three million, three hundred seventeen thousand, seven hundred sixty".