51568616988384 has 96 divisors (see below), whose sum is σ = 137609407746720. Its totient is φ = 16904960256000.

The previous prime is 51568616988379. The next prime is 51568616988439. The reversal of 51568616988384 is 48388961686515.

51568616988384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35005762 + ... + 36449150.

It is an arithmetic number, because the mean of its divisors is an integer number (1433431330695).

Almost surely, 2^{51568616988384} 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 51568616988384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68804703873360).

51568616988384 is an abundant number, since it is smaller than the sum of its proper divisors (86040790758336).

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

51568616988384 is a wasteful number, since it uses less digits than its factorization.

51568616988384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449564 (or 1449556 counting only the distinct ones).

The product of its digits is 2388787200, while the sum is 78.

The spelling of 51568616988384 in words is "fifty-one trillion, five hundred sixty-eight billion, six hundred sixteen million, nine hundred eighty-eight thousand, three hundred eighty-four".