51430432120 has 64 divisors (see below), whose sum is σ = 116327715840. Its totient is φ = 20464080000.

The previous prime is 51430432019. The next prime is 51430432159. The reversal of 51430432120 is 2123403415.

It is a congruent number.

It is an unprimeable number.

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, 9143629 + ... + 9149251.

It is an arithmetic number, because the mean of its divisors is an integer number (1817620560).

Almost surely, 2^51430432120 is an apocalyptic number.

It is an amenable number.

51430432120 is an abundant number, since it is smaller than the sum of its proper divisors (64897283720).

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

51430432120 is a wasteful number, since it uses less digits than its factorization.

51430432120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796 (or 6792 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 51430432120 its reverse (2123403415), we get a palindrome (53553835535).

The spelling of 51430432120 in words is "fifty-one billion, four hundred thirty million, four hundred thirty-two thousand, one hundred twenty".