51452471200420 has 24 divisors (see below), whose sum is σ = 108402144548544. Its totient is φ = 20513949427296.

The previous prime is 51452471200411. The next prime is 51452471200421. The reversal of 51452471200420 is 2400217425415.

51452471200420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51452471200420.

It is not an unprimeable number, because it can be changed into a prime (51452471200421) 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 7 ways as a sum of consecutive naturals, for example, 4189934512 + ... + 4189946791.

It is an arithmetic number, because the mean of its divisors is an integer number (4516756022856).

Almost surely, 2^{51452471200420} is an apocalyptic number.

It is an amenable number.

51452471200420 is an abundant number, since it is smaller than the sum of its proper divisors (56949673348124).

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

51452471200420 is a wasteful number, since it uses less digits than its factorization.

51452471200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8379881619 (or 8379881617 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 51452471200420 its reverse (2400217425415), we get a palindrome (53852688625835).

The spelling of 51452471200420 in words is "fifty-one trillion, four hundred fifty-two billion, four hundred seventy-one million, two hundred thousand, four hundred twenty".