51786796320 has 576 divisors, whose sum is σ = 212398018560. Its totient is φ = 11233880064.

The previous prime is 51786796289. The next prime is 51786796333. The reversal of 51786796320 is 2369768715.

51786796320 is a `hidden beast` number, since 5 + 178 + 67 + 96 + 320 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32224957 + ... + 32226563.

It is an arithmetic number, because the mean of its divisors is an integer number (368746560).

Almost surely, 2^51786796320 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 51786796320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106199009280).

51786796320 is an abundant number, since it is smaller than the sum of its proper divisors (160611222240).

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

51786796320 is a wasteful number, since it uses less digits than its factorization.

51786796320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 51786796320 in words is "fifty-one billion, seven hundred eighty-six million, seven hundred ninety-six thousand, three hundred twenty".