50646713121 has 6 divisors (see below), whose sum is σ = 73156363410. Its totient is φ = 33764475408.

The previous prime is 50646713099. The next prime is 50646713147. The reversal of 50646713121 is 12131764605.

50646713121 is a `hidden beast` number, since 5 + 0 + 646 + 7 + 1 + 3 + 1 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50642551521 + 4161600 = 225039^2 + 2040^2 .

It is not a de Polignac number, because 50646713121 - 2¹⁰ = 50646712097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50646713321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2813706276 + ... + 2813706293.

It is an arithmetic number, because the mean of its divisors is an integer number (12192727235).

Almost surely, 2^50646713121 is an apocalyptic number.

It is an amenable number.

50646713121 is a deficient number, since it is larger than the sum of its proper divisors (22509650289).

50646713121 is a wasteful number, since it uses less digits than its factorization.

50646713121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627412575 (or 5627412572 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 50646713121 in words is "fifty billion, six hundred forty-six million, seven hundred thirteen thousand, one hundred twenty-one".