50681038405 has 4 divisors (see below), whose sum is σ = 60817246092. Its totient is φ = 40544830720.

The previous prime is 50681038399. The next prime is 50681038411. The reversal of 50681038405 is 50483018605.

50681038405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (50681038399) and next prime (50681038411).

It can be written as a sum of positive squares in 2 ways, for example, as 8652348324 + 42028690081 = 93018^2 + 205009^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50681038405 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5068103836 + ... + 5068103845.

It is an arithmetic number, because the mean of its divisors is an integer number (15204311523).

Almost surely, 2^50681038405 is an apocalyptic number.

It is an amenable number.

50681038405 is a deficient number, since it is larger than the sum of its proper divisors (10136207687).

50681038405 is a wasteful number, since it uses less digits than its factorization.

50681038405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10136207686.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 50681038405 in words is "fifty billion, six hundred eighty-one million, thirty-eight thousand, four hundred five".