51044335544544 has 96 divisors (see below), whose sum is σ = 139957519403520. Its totient is φ = 16268566175232.

The previous prime is 51044335544507. The next prime is 51044335544557. The reversal of 51044335544544 is 44544553344015.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88717572 + ... + 89291075.

It is an arithmetic number, because the mean of its divisors is an integer number (1457890827120).

Almost surely, 2^{51044335544544} is an apocalyptic number.

It is an amenable number.

51044335544544 is an abundant number, since it is smaller than the sum of its proper divisors (88913183858976).

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

51044335544544 is a wasteful number, since it uses less digits than its factorization.

51044335544544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178008792 (or 178008784 counting only the distinct ones).

The product of its (nonzero) digits is 23040000, while the sum is 51.

Adding to 51044335544544 its reverse (44544553344015), we get a palindrome (95588888888559).

The spelling of 51044335544544 in words is "fifty-one trillion, forty-four billion, three hundred thirty-five million, five hundred forty-four thousand, five hundred forty-four".