40969208447 has 4 divisors (see below), whose sum is σ = 40988599680. Its totient is φ = 40949817216.

The previous prime is 40969208437. The next prime is 40969208453. The reversal of 40969208447 is 74480296904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40969208447 - 2⁶ = 40969208383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40969208437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9692447 + ... + 9696672.

It is an arithmetic number, because the mean of its divisors is an integer number (10247149920).

Almost surely, 2^40969208447 is an apocalyptic number.

40969208447 is a deficient number, since it is larger than the sum of its proper divisors (19391233).

40969208447 is a wasteful number, since it uses less digits than its factorization.

40969208447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19391232.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 40969208447 in words is "forty billion, nine hundred sixty-nine million, two hundred eight thousand, four hundred forty-seven".