50121631279 has 2 divisors, whose sum is σ = 50121631280. Its totient is φ = 50121631278.

The previous prime is 50121631247. The next prime is 50121631309. The reversal of 50121631279 is 97213612105.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50121631279 - 2⁵ = 50121631247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50121631979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25060815639 + 25060815640.

It is an arithmetic number, because the mean of its divisors is an integer number (25060815640).

Almost surely, 2^50121631279 is an apocalyptic number.

50121631279 is a deficient number, since it is larger than the sum of its proper divisors (1).

50121631279 is an equidigital number, since it uses as much as digits as its factorization.

50121631279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 50121631279 in words is "fifty billion, one hundred twenty-one million, six hundred thirty-one thousand, two hundred seventy-nine".