40891247417 has 8 divisors (see below), whose sum is σ = 41132901600. Its totient is φ = 40649740384.

The previous prime is 40891247393. The next prime is 40891247471. The reversal of 40891247417 is 71474219804.

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 40891247417 - 2²⁰ = 40890198841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40891247317) 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 7 ways as a sum of consecutive naturals, for example, 547934 + ... + 618072.

It is an arithmetic number, because the mean of its divisors is an integer number (5141612700).

Almost surely, 2^40891247417 is an apocalyptic number.

It is an amenable number.

40891247417 is a deficient number, since it is larger than the sum of its proper divisors (241654183).

40891247417 is a wasteful number, since it uses less digits than its factorization.

40891247417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73575.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 40891247417 in words is "forty billion, eight hundred ninety-one million, two hundred forty-seven thousand, four hundred seventeen".