51819059044 has 9 divisors (see below), whose sum is σ = 90684150067. Its totient is φ = 25909301884.

The previous prime is 51819059029. The next prime is 51819059051. The reversal of 51819059044 is 44095091815.

It is a happy number.

The square root of 51819059044 is 227638.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51819058985 and 51819059003.

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 2 ways as a sum of consecutive naturals, for example, 398367 + ... + 512185.

Almost surely, 2^51819059044 is an apocalyptic number.

51819059044 is the 227638-th square number.

It is an amenable number.

51819059044 is a deficient number, since it is larger than the sum of its proper divisors (38865091023).

51819059044 is an frugal number, since it uses more digits than its factorization.

51819059044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227642 (or 113821 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 51819059044 in words is "fifty-one billion, eight hundred nineteen million, fifty-nine thousand, forty-four".