51449687054200 has 192 divisors, whose sum is σ = 129794710910400. Its totient is φ = 18907813478400.

The previous prime is 51449687054197. The next prime is 51449687054219. The reversal of 51449687054200 is 245078694415.

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, 24747030 + ... + 26745370.

It is an arithmetic number, because the mean of its divisors is an integer number (676014119325).

Almost surely, 2^{51449687054200} is an apocalyptic number.

51449687054200 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 51449687054200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64897355455200).

51449687054200 is an abundant number, since it is smaller than the sum of its proper divisors (78345023856200).

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

51449687054200 is a wasteful number, since it uses less digits than its factorization.

51449687054200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998602 (or 1998593 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 51449687054200 in words is "fifty-one trillion, four hundred forty-nine billion, six hundred eighty-seven million, fifty-four thousand, two hundred".