40789446665 has 16 divisors (see below), whose sum is σ = 53838400896. Its totient is φ = 29665047280.

The previous prime is 40789446571. The next prime is 40789446667. The reversal of 40789446665 is 56664498704.

40789446665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40789446665 - 2¹² = 40789442569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40789446667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3057917 + ... + 3071226.

It is an arithmetic number, because the mean of its divisors is an integer number (3364900056).

Almost surely, 2^40789446665 is an apocalyptic number.

It is an amenable number.

40789446665 is a deficient number, since it is larger than the sum of its proper divisors (13048954231).

40789446665 is an equidigital number, since it uses as much as digits as its factorization.

40789446665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129181 (or 6129159 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 40789446665 in words is "forty billion, seven hundred eighty-nine million, four hundred forty-six thousand, six hundred sixty-five".