50164531189 has 2 divisors, whose sum is σ = 50164531190. Its totient is φ = 50164531188.

The previous prime is 50164531181. The next prime is 50164531231. The reversal of 50164531189 is 98113546105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35227536100 + 14936995089 = 187690^2 + 122217^2 .

It is a cyclic number.

It is not a de Polignac number, because 50164531189 - 2³ = 50164531181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50164531181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25082265594 + 25082265595.

It is an arithmetic number, because the mean of its divisors is an integer number (25082265595).

Almost surely, 2^50164531189 is an apocalyptic number.

It is an amenable number.

50164531189 is a deficient number, since it is larger than the sum of its proper divisors (1).

50164531189 is an equidigital number, since it uses as much as digits as its factorization.

50164531189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 50164531189 in words is "fifty billion, one hundred sixty-four million, five hundred thirty-one thousand, one hundred eighty-nine".