51421132340424 has 192 divisors, whose sum is σ = 173633601024000. Its totient is φ = 13355845695360.

The previous prime is 51421132340411. The next prime is 51421132340447. The reversal of 51421132340424 is 42404323112415.

51421132340424 is a `hidden beast` number, since 5 + 1 + 4 + 211 + 32 + 3 + 404 + 2 + 4 = 666.

51421132340424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 383904937 + ... + 384038855.

It is an arithmetic number, because the mean of its divisors is an integer number (904341672000).

Almost surely, 2^{51421132340424} is an apocalyptic number.

It is an amenable number.

51421132340424 is an abundant number, since it is smaller than the sum of its proper divisors (122212468683576).

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

51421132340424 is a wasteful number, since it uses less digits than its factorization.

51421132340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203208 (or 203201 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 51421132340424 its reverse (42404323112415), we get a palindrome (93825455452839).

The spelling of 51421132340424 in words is "fifty-one trillion, four hundred twenty-one billion, one hundred thirty-two million, three hundred forty thousand, four hundred twenty-four".