50172743279 has 2 divisors, whose sum is σ = 50172743280. Its totient is φ = 50172743278.

The previous prime is 50172743239. The next prime is 50172743303. The reversal of 50172743279 is 97234727105.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50172743279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50172743209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25086371639 + 25086371640.

It is an arithmetic number, because the mean of its divisors is an integer number (25086371640).

Almost surely, 2^50172743279 is an apocalyptic number.

50172743279 is a deficient number, since it is larger than the sum of its proper divisors (1).

50172743279 is an equidigital number, since it uses as much as digits as its factorization.

50172743279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 50172743279 in words is "fifty billion, one hundred seventy-two million, seven hundred forty-three thousand, two hundred seventy-nine".