51447175380748 has 96 divisors (see below), whose sum is σ = 106123540561920. Its totient is φ = 21364287459840.

The previous prime is 51447175380719. The next prime is 51447175380751. The reversal of 51447175380748 is 84708357174415.

It is a self number, because there is not a number n which added to its sum of digits gives 51447175380748.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403484661 + ... + 403612147.

It is an arithmetic number, because the mean of its divisors is an integer number (1105453547520).

Almost surely, 2^{51447175380748} 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 51447175380748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53061770280960).

51447175380748 is an abundant number, since it is smaller than the sum of its proper divisors (54676365181172).

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

51447175380748 is a wasteful number, since it uses less digits than its factorization.

51447175380748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129935 (or 129933 counting only the distinct ones).

The product of its (nonzero) digits is 105369600, while the sum is 64.

The spelling of 51447175380748 in words is "fifty-one trillion, four hundred forty-seven billion, one hundred seventy-five million, three hundred eighty thousand, seven hundred forty-eight".