6854721573 has 32 divisors (see below), whose sum is σ = 10696576000. Its totient is φ = 3902977008.

The previous prime is 6854721569. The next prime is 6854721593. The reversal of 6854721573 is 3751274586.

It is not a de Polignac number, because 6854721573 - 2² = 6854721569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854721553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279438 + ... + 302976.

It is an arithmetic number, because the mean of its divisors is an integer number (334268000).

Almost surely, 2^6854721573 is an apocalyptic number.

It is an amenable number.

6854721573 is a deficient number, since it is larger than the sum of its proper divisors (3841854427).

6854721573 is a wasteful number, since it uses less digits than its factorization.

6854721573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23846 (or 23832 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 6854721573 is about 82793.2459383010. The cubic root of 6854721573 is about 1899.6048645530.

The spelling of 6854721573 in words is "six billion, eight hundred fifty-four million, seven hundred twenty-one thousand, five hundred seventy-three".