50369964181 has 4 divisors (see below), whose sum is σ = 50382335052. Its totient is φ = 50357593312.

The previous prime is 50369964179. The next prime is 50369964191. The reversal of 50369964181 is 18146996305.

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 2500900081 + 47869064100 = 50009^2 + 218790^2 .

It is a cyclic number.

It is not a de Polignac number, because 50369964181 - 2¹ = 50369964179 is a prime.

It is a super-2 number, since 2×50369964181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50369964101) 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 3 ways as a sum of consecutive naturals, for example, 6179326 + ... + 6187471.

It is an arithmetic number, because the mean of its divisors is an integer number (12595583763).

Almost surely, 2^50369964181 is an apocalyptic number.

It is an amenable number.

50369964181 is a deficient number, since it is larger than the sum of its proper divisors (12370871).

50369964181 is a wasteful number, since it uses less digits than its factorization.

50369964181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12370870.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 50369964181 in words is "fifty billion, three hundred sixty-nine million, nine hundred sixty-four thousand, one hundred eighty-one".