10854438017 has 4 divisors (see below), whose sum is σ = 10854699696. Its totient is φ = 10854176340.

The previous prime is 10854438011. The next prime is 10854438037. The reversal of 10854438017 is 71083445801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71083445801 = 3307 ⋅21494843.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10854438017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10854438011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53303 + ... + 156684.

It is an arithmetic number, because the mean of its divisors is an integer number (2713674924).

Almost surely, 2^10854438017 is an apocalyptic number.

It is an amenable number.

10854438017 is a deficient number, since it is larger than the sum of its proper divisors (261679).

10854438017 is an equidigital number, since it uses as much as digits as its factorization.

10854438017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261678.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 10854438017 in words is "ten billion, eight hundred fifty-four million, four hundred thirty-eight thousand, seventeen".