51152448744640 has 112 divisors (see below), whose sum is σ = 125121144528864. Its totient is φ = 19904431104000.

The previous prime is 51152448744629. The next prime is 51152448744647. The reversal of 51152448744640 is 4644784425115.

It is not an unprimeable number, because it can be changed into a prime (51152448744647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66525580 + ... + 67290100.

Almost surely, 2^{51152448744640} 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 51152448744640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62560572264432).

51152448744640 is an abundant number, since it is smaller than the sum of its proper divisors (73968695784224).

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

51152448744640 is a wasteful number, since it uses less digits than its factorization.

51152448744640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770226 (or 770216 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 55.

The spelling of 51152448744640 in words is "fifty-one trillion, one hundred fifty-two billion, four hundred forty-eight million, seven hundred forty-four thousand, six hundred forty".