51494327790336 has 504 divisors, whose sum is σ = 161957684584080. Its totient is φ = 16312376844288.

The previous prime is 51494327790313. The next prime is 51494327790403. The reversal of 51494327790336 is 63309772349415.

51494327790336 is a `hidden beast` number, since 5 + 1 + 49 + 432 + 77 + 90 + 3 + 3 + 6 = 666.

51494327790336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55 ways as a sum of consecutive naturals, for example, 296832070 + ... + 297005498.

It is an arithmetic number, because the mean of its divisors is an integer number (321344612270).

Almost surely, 2^{51494327790336} 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 51494327790336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80978842292040).

51494327790336 is an abundant number, since it is smaller than the sum of its proper divisors (110463356793744).

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

51494327790336 is an equidigital number, since it uses as much as digits as its factorization.

51494327790336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173543 (or 173514 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 63.

The spelling of 51494327790336 in words is "fifty-one trillion, four hundred ninety-four billion, three hundred twenty-seven million, seven hundred ninety thousand, three hundred thirty-six".