50144319161 has 4 divisors (see below), whose sum is σ = 53093985012. Its totient is φ = 47194653312.

The previous prime is 50144319157. The next prime is 50144319217. The reversal of 50144319161 is 16191344105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26349405625 + 23794913536 = 162325^2 + 154256^2 .

It is a cyclic number.

It is not a de Polignac number, because 50144319161 - 2² = 50144319157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50144319131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474832900 + ... + 1474832933.

It is an arithmetic number, because the mean of its divisors is an integer number (13273496253).

Almost surely, 2^50144319161 is an apocalyptic number.

It is an amenable number.

50144319161 is a deficient number, since it is larger than the sum of its proper divisors (2949665851).

50144319161 is a wasteful number, since it uses less digits than its factorization.

50144319161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949665850.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 50144319161 in words is "fifty billion, one hundred forty-four million, three hundred nineteen thousand, one hundred sixty-one".