51868876800 has 720 divisors, whose sum is σ = 196589417472. Its totient is φ = 11953766400.

The previous prime is 51868876799. The next prime is 51868876849. The reversal of 51868876800 is 867886815.

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, 271564705 + ... + 271564895.

Almost surely, 2^51868876800 is an apocalyptic number.

51868876800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51868876800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98294708736).

51868876800 is an abundant number, since it is smaller than the sum of its proper divisors (144720540672).

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

51868876800 is a wasteful number, since it uses less digits than its factorization.

51868876800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The spelling of 51868876800 in words is "fifty-one billion, eight hundred sixty-eight million, eight hundred seventy-six thousand, eight hundred".