51344256426 has 32 divisors (see below), whose sum is σ = 109020593088. Its totient is φ = 16064805120.

The previous prime is 51344256401. The next prime is 51344256473. The reversal of 51344256426 is 62465244315.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636720 + ... + 712811.

It is an arithmetic number, because the mean of its divisors is an integer number (3406893534).

Almost surely, 2^51344256426 is an apocalyptic number.

51344256426 is an abundant number, since it is smaller than the sum of its proper divisors (57676336662).

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

51344256426 is a wasteful number, since it uses less digits than its factorization.

51344256426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349926.

The product of its digits is 691200, while the sum is 42.

The spelling of 51344256426 in words is "fifty-one billion, three hundred forty-four million, two hundred fifty-six thousand, four hundred twenty-six".