49891433844 has 36 divisors (see below), whose sum is σ = 133049282912. Its totient is φ = 14254110480.

The previous prime is 49891433789. The next prime is 49891433849. The reversal of 49891433844 is 44833419894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49891433849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2034979 + ... + 2059349.

Almost surely, 2^49891433844 is an apocalyptic number.

It is an amenable number.

49891433844 is an abundant number, since it is smaller than the sum of its proper divisors (83157849068).

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

49891433844 is an frugal number, since it uses more digits than its factorization.

49891433844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48756 (or 24383 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 57.

The spelling of 49891433844 in words is "forty-nine billion, eight hundred ninety-one million, four hundred thirty-three thousand, eight hundred forty-four".