50743438637 has 2 divisors, whose sum is σ = 50743438638. Its totient is φ = 50743438636.

The previous prime is 50743438633. The next prime is 50743438651. The reversal of 50743438637 is 73683434705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47317560676 + 3425877961 = 217526^2 + 58531^2 .

It is a cyclic number.

It is not a de Polignac number, because 50743438637 - 2² = 50743438633 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50743438633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25371719318 + 25371719319.

It is an arithmetic number, because the mean of its divisors is an integer number (25371719319).

Almost surely, 2^50743438637 is an apocalyptic number.

It is an amenable number.

50743438637 is a deficient number, since it is larger than the sum of its proper divisors (1).

50743438637 is an equidigital number, since it uses as much as digits as its factorization.

50743438637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 50743438637 in words is "fifty billion, seven hundred forty-three million, four hundred thirty-eight thousand, six hundred thirty-seven".