51442441244 has 12 divisors (see below), whose sum is σ = 90259325184. Its totient is φ = 25654062624.

The previous prime is 51442441199. The next prime is 51442441261. The reversal of 51442441244 is 44214424415.

It is a super-2 number, since 2×51442441244² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16787777 + ... + 16790840.

It is an arithmetic number, because the mean of its divisors is an integer number (7521610432).

Almost surely, 2^51442441244 is an apocalyptic number.

It is an amenable number.

51442441244 is a deficient number, since it is larger than the sum of its proper divisors (38816883940).

51442441244 is a wasteful number, since it uses less digits than its factorization.

51442441244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33579004 (or 33579002 counting only the distinct ones).

The product of its digits is 81920, while the sum is 35.

Adding to 51442441244 its reverse (44214424415), we get a palindrome (95656865659).

The spelling of 51442441244 in words is "fifty-one billion, four hundred forty-two million, four hundred forty-one thousand, two hundred forty-four".