51744409248 has 192 divisors, whose sum is σ = 159304320000. Its totient is φ = 14699849472.

The previous prime is 51744409247. The next prime is 51744409261. The reversal of 51744409248 is 84290444715.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 51744409197 and 51744409206.

It is not an unprimeable number, because it can be changed into a prime (51744409247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5889723 + ... + 5898501.

It is an arithmetic number, because the mean of its divisors is an integer number (829710000).

Almost surely, 2^51744409248 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 51744409248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79652160000).

51744409248 is an abundant number, since it is smaller than the sum of its proper divisors (107559910752).

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

51744409248 is a wasteful number, since it uses less digits than its factorization.

51744409248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8992 (or 8970 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 51744409248 in words is "fifty-one billion, seven hundred forty-four million, four hundred nine thousand, two hundred forty-eight".