51341017728 has 384 divisors, whose sum is σ = 186383816640. Its totient is φ = 12308889600.

The previous prime is 51341017661. The next prime is 51341017733. The reversal of 51341017728 is 82771014315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 2681148 + ... + 2700228.

Almost surely, 2^51341017728 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 51341017728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93191908320).

51341017728 is an abundant number, since it is smaller than the sum of its proper divisors (135042798912).

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

51341017728 is a wasteful number, since it uses less digits than its factorization.

51341017728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136 (or 19117 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 51341017728 in words is "fifty-one billion, three hundred forty-one million, seventeen thousand, seven hundred twenty-eight".