6454216853 has 4 divisors (see below), whose sum is σ = 7376247840. Its totient is φ = 5532185868.

The previous prime is 6454216831. The next prime is 6454216859. The reversal of 6454216853 is 3586124546.

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.

It is a cyclic number.

It is not a de Polignac number, because 6454216853 - 2¹² = 6454212757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6454216859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461015483 + ... + 461015496.

It is an arithmetic number, because the mean of its divisors is an integer number (1844061960).

Almost surely, 2^6454216853 is an apocalyptic number.

It is an amenable number.

6454216853 is a deficient number, since it is larger than the sum of its proper divisors (922030987).

6454216853 is an equidigital number, since it uses as much as digits as its factorization.

6454216853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922030986.

The product of its digits is 691200, while the sum is 44.

The square root of 6454216853 is about 80338.1407116197. The cubic root of 6454216853 is about 1861.8635553329.

The spelling of 6454216853 in words is "six billion, four hundred fifty-four million, two hundred sixteen thousand, eight hundred fifty-three".