51344435544 has 32 divisors (see below), whose sum is σ = 130168995840. Its totient is φ = 16873757600.

The previous prime is 51344435543. The next prime is 51344435567. The reversal of 51344435544 is 44553444315.

It is a super-2 number, since 2×51344435544² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51344435496 and 51344435505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51344435543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15064152 + ... + 15067559.

It is an arithmetic number, because the mean of its divisors is an integer number (4067781120).

Almost surely, 2^51344435544 is an apocalyptic number.

It is an amenable number.

51344435544 is an abundant number, since it is smaller than the sum of its proper divisors (78824560296).

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

51344435544 is a wasteful number, since it uses less digits than its factorization.

51344435544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30131791 (or 30131787 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 42.

Adding to 51344435544 its reverse (44553444315), we get a palindrome (95897879859).

The spelling of 51344435544 in words is "fifty-one billion, three hundred forty-four million, four hundred thirty-five thousand, five hundred forty-four".