6745810545 has 96 divisors (see below), whose sum is σ = 13039002240. Its totient is φ = 3306562560.

The previous prime is 6745810543. The next prime is 6745810567. The reversal of 6745810545 is 5450185476.

6745810545 is a `hidden beast` number, since 67 + 4 + 581 + 0 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 6745810545 - 2¹ = 6745810543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 6745810545.

It is not an unprimeable number, because it can be changed into a prime (6745810543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1675635 + ... + 1679655.

It is an arithmetic number, because the mean of its divisors is an integer number (135822940).

Almost surely, 2^6745810545 is an apocalyptic number.

It is an amenable number.

6745810545 is a deficient number, since it is larger than the sum of its proper divisors (6293191695).

6745810545 is a wasteful number, since it uses less digits than its factorization.

6745810545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 6745810545 is about 82132.8834572365. The cubic root of 6745810545 is about 1889.4905026241.

The spelling of 6745810545 in words is "six billion, seven hundred forty-five million, eight hundred ten thousand, five hundred forty-five".