51384441315480 has 256 divisors, whose sum is σ = 195847400448000. Its totient is φ = 10491824885760.

The previous prime is 51384441315413. The next prime is 51384441315503. The reversal of 51384441315480 is 8451314448315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75557205 + ... + 76234244.

It is an arithmetic number, because the mean of its divisors is an integer number (765028908000).

Almost surely, 2^{51384441315480} is an apocalyptic number.

It is an amenable number.

51384441315480 is an abundant number, since it is smaller than the sum of its proper divisors (144462959132520).

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

51384441315480 is a wasteful number, since it uses less digits than its factorization.

51384441315480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151791514 (or 151791510 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 51384441315480 in words is "fifty-one trillion, three hundred eighty-four billion, four hundred forty-one million, three hundred fifteen thousand, four hundred eighty".