50278106161 has 8 divisors (see below), whose sum is σ = 50996955240. Its totient is φ = 49563940608.

The previous prime is 50278106063. The next prime is 50278106251. The reversal of 50278106161 is 16160187205.

It can be written as a sum of positive squares in 4 ways, for example, as 15661271025 + 34616835136 = 125145^2 + 186056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50278106161 - 2²⁹ = 49741235249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50278106161.

It is not an unprimeable number, because it can be changed into a prime (50278107161) 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 7 ways as a sum of consecutive naturals, for example, 1149256 + ... + 1192201.

It is an arithmetic number, because the mean of its divisors is an integer number (6374619405).

Almost surely, 2^50278106161 is an apocalyptic number.

It is an amenable number.

50278106161 is a deficient number, since it is larger than the sum of its proper divisors (718849079).

50278106161 is a wasteful number, since it uses less digits than its factorization.

50278106161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341763.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 50278106161 in words is "fifty billion, two hundred seventy-eight million, one hundred six thousand, one hundred sixty-one".