43771668051 has 12 divisors (see below), whose sum is σ = 61997242712. Its totient is φ = 27464575488.

The previous prime is 43771668049. The next prime is 43771668071. The reversal of 43771668051 is 15086617734.

It is not a de Polignac number, because 43771668051 - 2¹ = 43771668049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43771668001) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25242310 + ... + 25244043.

Almost surely, 2^43771668051 is an apocalyptic number.

43771668051 is a deficient number, since it is larger than the sum of its proper divisors (18225574661).

43771668051 is a wasteful number, since it uses less digits than its factorization.

43771668051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50486390 (or 50486373 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 43771668051 in words is "forty-three billion, seven hundred seventy-one million, six hundred sixty-eight thousand, fifty-one".