40865866969 has 8 divisors (see below), whose sum is σ = 41523021792. Its totient is φ = 40212636000.

The previous prime is 40865866939. The next prime is 40865867011. The reversal of 40865866969 is 96966856804.

40865866969 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 a cyclic number.

It is not a de Polignac number, because 40865866969 - 2⁷ = 40865866841 is a prime.

It is a super-3 number, since 3×40865866969³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40865866939) 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, 959964 + ... + 1001629.

It is an arithmetic number, because the mean of its divisors is an integer number (5190377724).

Almost surely, 2^40865866969 is an apocalyptic number.

It is an amenable number.

40865866969 is a deficient number, since it is larger than the sum of its proper divisors (657154823).

40865866969 is a wasteful number, since it uses less digits than its factorization.

40865866969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961927.

The product of its (nonzero) digits is 134369280, while the sum is 67.

The spelling of 40865866969 in words is "forty billion, eight hundred sixty-five million, eight hundred sixty-six thousand, nine hundred sixty-nine".