6723564945 has 8 divisors (see below), whose sum is σ = 10757703936. Its totient is φ = 3585901296.

The previous prime is 6723564929. The next prime is 6723564959. The reversal of 6723564945 is 5494653276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6723564945 - 2⁴ = 6723564929 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224118817 + ... + 224118846.

It is an arithmetic number, because the mean of its divisors is an integer number (1344712992).

Almost surely, 2^6723564945 is an apocalyptic number.

It is an amenable number.

6723564945 is a deficient number, since it is larger than the sum of its proper divisors (4034138991).

6723564945 is a wasteful number, since it uses less digits than its factorization.

6723564945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448237671.

The product of its digits is 5443200, while the sum is 51.

The square root of 6723564945 is about 81997.3471826985. The cubic root of 6723564945 is about 1887.4112299523.

The spelling of 6723564945 in words is "six billion, seven hundred twenty-three million, five hundred sixty-four thousand, nine hundred forty-five".