51424454312 has 64 divisors (see below), whose sum is σ = 120252124800. Its totient is φ = 20028983040.

The previous prime is 51424454309. The next prime is 51424454327. The reversal of 51424454312 is 21345442415.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 2164514 + ... + 2188142.

It is an arithmetic number, because the mean of its divisors is an integer number (1878939450).

Almost surely, 2^51424454312 is an apocalyptic number.

It is an amenable number.

51424454312 is an abundant number, since it is smaller than the sum of its proper divisors (68827670488).

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

51424454312 is a wasteful number, since it uses less digits than its factorization.

51424454312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27186 (or 27182 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 51424454312 its reverse (21345442415), we get a palindrome (72769896727).

The spelling of 51424454312 in words is "fifty-one billion, four hundred twenty-four million, four hundred fifty-four thousand, three hundred twelve".