51422426046 has 48 divisors (see below), whose sum is σ = 115773840000. Its totient is φ = 17106377688.

The previous prime is 51422426023. The next prime is 51422426053. The reversal of 51422426046 is 64062422415.

51422426046 is a `hidden beast` number, since 5 + 1 + 4 + 2 + 2 + 42 + 604 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51422426046.

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 23 ways as a sum of consecutive naturals, for example, 136495 + ... + 348533.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955000).

Almost surely, 2^51422426046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51422426046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57886920000).

51422426046 is an abundant number, since it is smaller than the sum of its proper divisors (64351413954).

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

51422426046 is a wasteful number, since it uses less digits than its factorization.

51422426046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212555 (or 212543 counting only the distinct ones).

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

The spelling of 51422426046 in words is "fifty-one billion, four hundred twenty-two million, four hundred twenty-six thousand, forty-six".