51441422616 has 192 divisors, whose sum is σ = 147357213120. Its totient is φ = 16179609600.

The previous prime is 51441422597. The next prime is 51441422633. The reversal of 51441422616 is 61622414415.

51441422616 is a `hidden beast` number, since 5 + 1 + 4 + 4 + 14 + 22 + 616 = 666.

51441422616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76435656 + ... + 76436328.

It is an arithmetic number, because the mean of its divisors is an integer number (767485485).

Almost surely, 2^51441422616 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 51441422616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73678606560).

51441422616 is an abundant number, since it is smaller than the sum of its proper divisors (95915790504).

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

51441422616 is a wasteful number, since it uses less digits than its factorization.

51441422616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1259 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The spelling of 51441422616 in words is "fifty-one billion, four hundred forty-one million, four hundred twenty-two thousand, six hundred sixteen".