50390403189 has 16 divisors (see below), whose sum is σ = 76788544128. Its totient is φ = 28793328192.

The previous prime is 50390403169. The next prime is 50390403191. The reversal of 50390403189 is 98130409305.

It is not a de Polignac number, because 50390403189 - 2¹² = 50390399093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50390403189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50390403109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862039 + ... + 918635.

It is an arithmetic number, because the mean of its divisors is an integer number (4799284008).

Almost surely, 2^50390403189 is an apocalyptic number.

It is an amenable number.

50390403189 is a deficient number, since it is larger than the sum of its proper divisors (26398140939).

50390403189 is a wasteful number, since it uses less digits than its factorization.

50390403189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99004.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 50390403189 in words is "fifty billion, three hundred ninety million, four hundred three thousand, one hundred eighty-nine".