50143640413 has 2 divisors, whose sum is σ = 50143640414. Its totient is φ = 50143640412.

The previous prime is 50143640401. The next prime is 50143640431. The reversal of 50143640413 is 31404634105.

It is a happy number.

Together with next prime (50143640431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44978774724 + 5164865689 = 212082^2 + 71867^2 .

It is a cyclic number.

It is not a de Polignac number, because 50143640413 - 2¹³ = 50143632221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50143640513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25071820206 + 25071820207.

It is an arithmetic number, because the mean of its divisors is an integer number (25071820207).

Almost surely, 2^50143640413 is an apocalyptic number.

It is an amenable number.

50143640413 is a deficient number, since it is larger than the sum of its proper divisors (1).

50143640413 is an equidigital number, since it uses as much as digits as its factorization.

50143640413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 50143640413 in words is "fifty billion, one hundred forty-three million, six hundred forty thousand, four hundred thirteen".