51344256428 has 24 divisors (see below), whose sum is σ = 90148858800. Its totient is φ = 25587491328.

The previous prime is 51344256401. The next prime is 51344256473. The reversal of 51344256428 is 82465244315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6815768 + ... + 6823296.

It is an arithmetic number, because the mean of its divisors is an integer number (3756202450).

Almost surely, 2^51344256428 is an apocalyptic number.

It is an amenable number.

51344256428 is a deficient number, since it is larger than the sum of its proper divisors (38804602372).

51344256428 is a wasteful number, since it uses less digits than its factorization.

51344256428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12929 (or 12927 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The spelling of 51344256428 in words is "fifty-one billion, three hundred forty-four million, two hundred fifty-six thousand, four hundred twenty-eight".