51321414012 has 48 divisors (see below), whose sum is σ = 131929789824. Its totient is φ = 15397960000.

The previous prime is 51321413993. The next prime is 51321414017. The reversal of 51321414012 is 21041412315.

It is a super-2 number, since 2×51321414012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51321414017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1911414 + ... + 1938077.

It is an arithmetic number, because the mean of its divisors is an integer number (2748537288).

Almost surely, 2^51321414012 is an apocalyptic number.

It is an amenable number.

51321414012 is an abundant number, since it is smaller than the sum of its proper divisors (80608375812).

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

51321414012 is a wasteful number, since it uses less digits than its factorization.

51321414012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3849610 (or 3849608 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 51321414012 its reverse (21041412315), we get a palindrome (72362826327).

The spelling of 51321414012 in words is "fifty-one billion, three hundred twenty-one million, four hundred fourteen thousand, twelve".