51543451344 has 80 divisors (see below), whose sum is σ = 166010088960. Its totient is φ = 13387908480.

The previous prime is 51543451331. The next prime is 51543451363. The reversal of 51543451344 is 44315434515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6969174 + ... + 6976565.

It is an arithmetic number, because the mean of its divisors is an integer number (2075126112).

Almost surely, 2^51543451344 is an apocalyptic number.

It is an amenable number.

51543451344 is an abundant number, since it is smaller than the sum of its proper divisors (114466637616).

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

51543451344 is a wasteful number, since it uses less digits than its factorization.

51543451344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13945768 (or 13945762 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

Adding to 51543451344 its reverse (44315434515), we get a palindrome (95858885859).

The spelling of 51543451344 in words is "fifty-one billion, five hundred forty-three million, four hundred fifty-one thousand, three hundred forty-four".