854553043447 has 4 divisors (see below), whose sum is σ = 854555154640. Its totient is φ = 854550932256.

The previous prime is 854553043441. The next prime is 854553043457. The reversal of 854553043447 is 744340355458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 854553043447 - 2³⁹ = 304797229559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 854553043394 and 854553043403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854553043441) 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, 236658 + ... + 1328575.

It is an arithmetic number, because the mean of its divisors is an integer number (213638788660).

Almost surely, 2^854553043447 is an apocalyptic number.

854553043447 is a deficient number, since it is larger than the sum of its proper divisors (2111193).

854553043447 is a wasteful number, since it uses less digits than its factorization.

854553043447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111192.

The product of its (nonzero) digits is 16128000, while the sum is 52.

The spelling of 854553043447 in words is "eight hundred fifty-four billion, five hundred fifty-three million, forty-three thousand, four hundred forty-seven".