50989978343 has 2 divisors, whose sum is σ = 50989978344. Its totient is φ = 50989978342.

The previous prime is 50989978309. The next prime is 50989978367. The reversal of 50989978343 is 34387998905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50989978343 - 2²⁴ = 50973201127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50989978343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50989972343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25494989171 + 25494989172.

It is an arithmetic number, because the mean of its divisors is an integer number (25494989172).

Almost surely, 2^50989978343 is an apocalyptic number.

50989978343 is a deficient number, since it is larger than the sum of its proper divisors (1).

50989978343 is an equidigital number, since it uses as much as digits as its factorization.

50989978343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 50989978343 in words is "fifty billion, nine hundred eighty-nine million, nine hundred seventy-eight thousand, three hundred forty-three".