51744486386 has 8 divisors (see below), whose sum is σ = 80293168620. Its totient is φ = 24980096848.

The previous prime is 51744486377. The next prime is 51744486433. The reversal of 51744486386 is 68368444715.

It can be written as a sum of positive squares in 2 ways, for example, as 46965391225 + 4779095161 = 216715^2 + 69131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446073101 + ... + 446073216.

Almost surely, 2^51744486386 is an apocalyptic number.

51744486386 is a deficient number, since it is larger than the sum of its proper divisors (28548682234).

51744486386 is a wasteful number, since it uses less digits than its factorization.

51744486386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892146348.

The product of its digits is 15482880, while the sum is 56.

The spelling of 51744486386 in words is "fifty-one billion, seven hundred forty-four million, four hundred eighty-six thousand, three hundred eighty-six".