51443220143300 has 144 divisors (see below), whose sum is σ = 116837550918144. Its totient is φ = 19637760000000.

The previous prime is 51443220143281. The next prime is 51443220143323. The reversal of 51443220143300 is 334102234415.

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, 78260804 + ... + 78915396.

It is an arithmetic number, because the mean of its divisors is an integer number (811371881376).

Almost surely, 2^{51443220143300} is an apocalyptic number.

51443220143300 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 51443220143300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58418775459072).

51443220143300 is an abundant number, since it is smaller than the sum of its proper divisors (65394330774844).

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

51443220143300 is a wasteful number, since it uses less digits than its factorization.

51443220143300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654990 (or 654983 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 51443220143300 its reverse (334102234415), we get a palindrome (51777322377715).

The spelling of 51443220143300 in words is "fifty-one trillion, four hundred forty-three billion, two hundred twenty million, one hundred forty-three thousand, three hundred".