51747901742880 has 576 divisors, whose sum is σ = 212722590382848. Its totient is φ = 11634184949760.

The previous prime is 51747901742857. The next prime is 51747901742897. The reversal of 51747901742880 is 8824710974715.

51747901742880 is a `hidden beast` number, since 5 + 1 + 7 + 47 + 90 + 1 + 7 + 428 + 80 = 666.

51747901742880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 95 ways as a sum of consecutive naturals, for example, 15043254 + ... + 18160266.

It is an arithmetic number, because the mean of its divisors is an integer number (369310052748).

Almost surely, 2^{51747901742880} 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 51747901742880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106361295191424).

51747901742880 is an abundant number, since it is smaller than the sum of its proper divisors (160974688639968).

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

51747901742880 is a wasteful number, since it uses less digits than its factorization.

51747901742880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117111 (or 3117091 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 63.

The spelling of 51747901742880 in words is "fifty-one trillion, seven hundred forty-seven billion, nine hundred one million, seven hundred forty-two thousand, eight hundred eighty".