51748548480 has 192 divisors, whose sum is σ = 178847697600. Its totient is φ = 13787762688.

The previous prime is 51748548463. The next prime is 51748548547. The reversal of 51748548480 is 8484584715.

51748548480 = 14090² + 14091² + ... + 14345².

51748548480 is a `hidden beast` number, since 5 + 1 + 7 + 4 + 85 + 484 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8227897 + ... + 8234183.

It is an arithmetic number, because the mean of its divisors is an integer number (931498425).

Almost surely, 2^51748548480 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 51748548480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89423848800).

51748548480 is an abundant number, since it is smaller than the sum of its proper divisors (127099149120).

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

51748548480 is a wasteful number, since it uses less digits than its factorization.

51748548480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7726 counting only the distinct ones).

The product of its (nonzero) digits is 5734400, while the sum is 54.

The spelling of 51748548480 in words is "fifty-one billion, seven hundred forty-eight million, five hundred forty-eight thousand, four hundred eighty".