50818147837 has 2 divisors, whose sum is σ = 50818147838. Its totient is φ = 50818147836.

The previous prime is 50818147829. The next prime is 50818147843. The reversal of 50818147837 is 73874181805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31904747161 + 18913400676 = 178619^2 + 137526^2 .

It is a cyclic number.

It is not a de Polignac number, because 50818147837 - 2³ = 50818147829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50818148837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25409073918 + 25409073919.

It is an arithmetic number, because the mean of its divisors is an integer number (25409073919).

Almost surely, 2^50818147837 is an apocalyptic number.

It is an amenable number.

50818147837 is a deficient number, since it is larger than the sum of its proper divisors (1).

50818147837 is an equidigital number, since it uses as much as digits as its factorization.

50818147837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 50818147837 in words is "fifty billion, eight hundred eighteen million, one hundred forty-seven thousand, eight hundred thirty-seven".