40206808249 has 8 divisors (see below), whose sum is σ = 40295724480. Its totient is φ = 40117987056.

The previous prime is 40206808223. The next prime is 40206808253. The reversal of 40206808249 is 94280860204.

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 40206808249 - 2⁹ = 40206807737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40206848249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859147 + ... + 904735.

It is an arithmetic number, because the mean of its divisors is an integer number (5036965560).

Almost surely, 2^40206808249 is an apocalyptic number.

It is an amenable number.

40206808249 is a deficient number, since it is larger than the sum of its proper divisors (88916231).

40206808249 is a wasteful number, since it uses less digits than its factorization.

40206808249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47519.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 40206808249 in words is "forty billion, two hundred six million, eight hundred eight thousand, two hundred forty-nine".