43161891050 has 48 divisors (see below), whose sum is σ = 82288483200. Its totient is φ = 16833571200.

The previous prime is 43161891037. The next prime is 43161891079. The reversal of 43161891050 is 5019816134.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43161890995 and 43161891013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4051631 + ... + 4062269.

It is an arithmetic number, because the mean of its divisors is an integer number (1714343400).

Almost surely, 2^43161891050 is an apocalyptic number.

43161891050 is a deficient number, since it is larger than the sum of its proper divisors (39126592150).

43161891050 is a wasteful number, since it uses less digits than its factorization.

43161891050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12671 (or 12666 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 43161891050 in words is "forty-three billion, one hundred sixty-one million, eight hundred ninety-one thousand, fifty".