51472083648240 has 240 divisors, whose sum is σ = 176556675649536. Its totient is φ = 13432450137600.

The previous prime is 51472083648179. The next prime is 51472083648241. The reversal of 51472083648240 is 4284638027415.

51472083648240 is a `hidden beast` number, since 5 + 1 + 47 + 2 + 0 + 83 + 6 + 482 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51472083648241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347496595 + ... + 347644685.

Almost surely, 2^{51472083648240} 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 51472083648240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88278337824768).

51472083648240 is an abundant number, since it is smaller than the sum of its proper divisors (125084592001296).

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

51472083648240 is a wasteful number, since it uses less digits than its factorization.

51472083648240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158428 (or 158419 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 51472083648240 in words is "fifty-one trillion, four hundred seventy-two billion, eighty-three million, six hundred forty-eight thousand, two hundred forty".