51450516480 has 1056 divisors, whose sum is σ = 200725217280. Its totient is φ = 11191910400.

The previous prime is 51450516413. The next prime is 51450516497. The reversal of 51450516480 is 8461505415.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1094691817 + ... + 1094691863.

Almost surely, 2^51450516480 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 51450516480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100362608640).

51450516480 is an abundant number, since it is smaller than the sum of its proper divisors (149274700800).

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

51450516480 is a wasteful number, since it uses less digits than its factorization.

51450516480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 51450516480 in words is "fifty-one billion, four hundred fifty million, five hundred sixteen thousand, four hundred eighty".