51026431444 has 12 divisors (see below), whose sum is σ = 89614037268. Its totient is φ = 25422420800.

The previous prime is 51026431433. The next prime is 51026431453. The reversal of 51026431444 is 44413462015.

It can be written as a sum of positive squares in 2 ways, for example, as 13637568400 + 37388863044 = 116780^2 + 193362^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22697467 + ... + 22699714.

It is an arithmetic number, because the mean of its divisors is an integer number (7467836439).

Almost surely, 2^51026431444 is an apocalyptic number.

It is an amenable number.

51026431444 is a deficient number, since it is larger than the sum of its proper divisors (38587605824).

51026431444 is a wasteful number, since it uses less digits than its factorization.

51026431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45397466 (or 45397464 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 51026431444 its reverse (44413462015), we get a palindrome (95439893459).

The spelling of 51026431444 in words is "fifty-one billion, twenty-six million, four hundred thirty-one thousand, four hundred forty-four".