40445431016 has 8 divisors (see below), whose sum is σ = 75835183170. Its totient is φ = 20222715504.

The previous prime is 40445431001. The next prime is 40445431027. The reversal of 40445431016 is 61013454404.

40445431016 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., 40445232100 + 198916 = 201110^2 + 446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527839431 + ... + 2527839446.

Almost surely, 2^40445431016 is an apocalyptic number.

It is an amenable number.

40445431016 is a deficient number, since it is larger than the sum of its proper divisors (35389752154).

40445431016 is a wasteful number, since it uses less digits than its factorization.

40445431016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055678883 (or 5055678879 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 40445431016 in words is "forty billion, four hundred forty-five million, four hundred thirty-one thousand, sixteen".