43949890852 has 18 divisors (see below), whose sum is σ = 89469421062. Its totient is φ = 18835667424.

The previous prime is 43949890841. The next prime is 43949890871. The reversal of 43949890852 is 25809894934.

43949890852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32596135936 + 11353754916 = 180544^2 + 106554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112116873 + ... + 112117264.

Almost surely, 2^43949890852 is an apocalyptic number.

It is an amenable number.

43949890852 is an abundant number, since it is smaller than the sum of its proper divisors (45519530210).

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

43949890852 is a wasteful number, since it uses less digits than its factorization.

43949890852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224234155 (or 224234146 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 43949890852 in words is "forty-three billion, nine hundred forty-nine million, eight hundred ninety thousand, eight hundred fifty-two".