18466040417 has 8 divisors (see below), whose sum is σ = 20154783072. Its totient is φ = 16778966400.

The previous prime is 18466040371. The next prime is 18466040479. The reversal of 18466040417 is 71404066481.

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 18466040417 - 2⁸ = 18466040161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18466040317) 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, 393959 + ... + 438332.

It is an arithmetic number, because the mean of its divisors is an integer number (2519347884).

Almost surely, 2^18466040417 is an apocalyptic number.

It is an amenable number.

18466040417 is a deficient number, since it is larger than the sum of its proper divisors (1688742655).

18466040417 is a wasteful number, since it uses less digits than its factorization.

18466040417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834319.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 18466040417 in words is "eighteen billion, four hundred sixty-six million, forty thousand, four hundred seventeen".