50398857079157 has 2 divisors, whose sum is σ = 50398857079158. Its totient is φ = 50398857079156.

The previous prime is 50398857079141. The next prime is 50398857079253. The reversal of 50398857079157 is 75197075889305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35467194128356 + 14931662950801 = 5955434^2 + 3864151^2 .

It is a cyclic number.

It is not a de Polignac number, because 50398857079157 - 2⁴ = 50398857079141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50398857079357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199428539578 + 25199428539579.

It is an arithmetic number, because the mean of its divisors is an integer number (25199428539579).

Almost surely, 2^{50398857079157} is an apocalyptic number.

It is an amenable number.

50398857079157 is a deficient number, since it is larger than the sum of its proper divisors (1).

50398857079157 is an equidigital number, since it uses as much as digits as its factorization.

50398857079157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792000, while the sum is 74.

The spelling of 50398857079157 in words is "fifty trillion, three hundred ninety-eight billion, eight hundred fifty-seven million, seventy-nine thousand, one hundred fifty-seven".