51422605146 has 48 divisors (see below), whose sum is σ = 121807071360. Its totient is φ = 15548924160.

The previous prime is 51422605127. The next prime is 51422605151. The reversal of 51422605146 is 64150622415.

51422605146 is a `hidden beast` number, since 5 + 1 + 4 + 2 + 2 + 605 + 1 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51422605146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188791 + ... + 372138.

It is an arithmetic number, because the mean of its divisors is an integer number (2537647320).

Almost surely, 2^51422605146 is an apocalyptic number.

51422605146 is an abundant number, since it is smaller than the sum of its proper divisors (70384466214).

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

51422605146 is a wasteful number, since it uses less digits than its factorization.

51422605146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561411 (or 561408 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 51422605146 in words is "fifty-one billion, four hundred twenty-two million, six hundred five thousand, one hundred forty-six".