40558613944809 has 8 divisors (see below), whose sum is σ = 54467203379680. Its totient is φ = 26844550236576.

The previous prime is 40558613944781. The next prime is 40558613944813. The reversal of 40558613944809 is 90844931685504.

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

It is not a de Polignac number, because 40558613944809 - 2¹¹ = 40558613942761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40558613944809.

It is not an unprimeable number, because it can be changed into a prime (40558613944909) 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, 48631431172 + ... + 48631432005.

It is an arithmetic number, because the mean of its divisors is an integer number (6808400422460).

Almost surely, 2^{40558613944809} is an apocalyptic number.

It is an amenable number.

40558613944809 is a deficient number, since it is larger than the sum of its proper divisors (13908589434871).

40558613944809 is a wasteful number, since it uses less digits than its factorization.

40558613944809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97262863319.

The product of its (nonzero) digits is 149299200, while the sum is 66.

The spelling of 40558613944809 in words is "forty trillion, five hundred fifty-eight billion, six hundred thirteen million, nine hundred forty-four thousand, eight hundred nine".