40808144667 has 8 divisors (see below), whose sum is σ = 54584697424. Its totient is φ = 27118510848.

The previous prime is 40808144623. The next prime is 40808144669. The reversal of 40808144667 is 76644180804.

40808144667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40808144667 - 2¹⁸ = 40807882523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40808144669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21728638 + ... + 21730515.

It is an arithmetic number, because the mean of its divisors is an integer number (6823087178).

Almost surely, 2^40808144667 is an apocalyptic number.

40808144667 is a deficient number, since it is larger than the sum of its proper divisors (13776552757).

40808144667 is a wasteful number, since it uses less digits than its factorization.

40808144667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43459469.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 40808144667 in words is "forty billion, eight hundred eight million, one hundred forty-four thousand, six hundred sixty-seven".