50391843636 has 12 divisors (see below), whose sum is σ = 117580968512. Its totient is φ = 16797281208.

The previous prime is 50391843613. The next prime is 50391843653. The reversal of 50391843636 is 63634819305.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×50391843636³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099660140 + ... + 2099660163.

Almost surely, 2^50391843636 is an apocalyptic number.

It is an amenable number.

50391843636 is an abundant number, since it is smaller than the sum of its proper divisors (67189124876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50391843636 is a wasteful number, since it uses less digits than its factorization.

50391843636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199320310 (or 4199320308 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 50391843636 in words is "fifty billion, three hundred ninety-one million, eight hundred forty-three thousand, six hundred thirty-six".