40618469449 has 8 divisors (see below), whose sum is σ = 41195051712. Its totient is φ = 40042012080.

The previous prime is 40618469443. The next prime is 40618469509. The reversal of 40618469449 is 94496481604.

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 40618469449 - 2⁹ = 40618468937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40618469449.

It is not an unprimeable number, because it can be changed into a prime (40618469443) 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, 767682 + ... + 818884.

It is an arithmetic number, because the mean of its divisors is an integer number (5149381464).

Almost surely, 2^40618469449 is an apocalyptic number.

It is an amenable number.

40618469449 is a deficient number, since it is larger than the sum of its proper divisors (576582263).

40618469449 is a wasteful number, since it uses less digits than its factorization.

40618469449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62447.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 40618469449 in words is "forty billion, six hundred eighteen million, four hundred sixty-nine thousand, four hundred forty-nine".