854350184449 has 4 divisors (see below), whose sum is σ = 854413375536. Its totient is φ = 854286993364.

The previous prime is 854350184411. The next prime is 854350184461. The reversal of 854350184449 is 944481053458.

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: 944481053458 = 2 ⋅472240526729.

It is a cyclic number.

It is not a de Polignac number, because 854350184449 - 2⁷ = 854350184321 is a prime.

It is a super-4 number, since 4×854350184449⁴ (a number of 49 digits) contains 4444 as substring.

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 854350184449.

It is not an unprimeable number, because it can be changed into a prime (854350188449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31575259 + ... + 31602304.

It is an arithmetic number, because the mean of its divisors is an integer number (213603343884).

Almost surely, 2^854350184449 is an apocalyptic number.

It is an amenable number.

854350184449 is a deficient number, since it is larger than the sum of its proper divisors (63191087).

854350184449 is a wasteful number, since it uses less digits than its factorization.

854350184449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63191086.

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 854350184449 in words is "eight hundred fifty-four billion, three hundred fifty million, one hundred eighty-four thousand, four hundred forty-nine".