675745645 has 8 divisors (see below), whose sum is σ = 829753056. Its totient is φ = 528024336.

The previous prime is 675745643. The next prime is 675745669. The reversal of 675745645 is 546547576.

675745645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 675745645 - 2¹ = 675745643 is a prime.

It is a super-3 number, since 3×675745645³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675745643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571287 + ... + 1571716.

It is an arithmetic number, because the mean of its divisors is an integer number (103719132).

Almost surely, 2^675745645 is an apocalyptic number.

It is an amenable number.

675745645 is a deficient number, since it is larger than the sum of its proper divisors (154007411).

675745645 is a wasteful number, since it uses less digits than its factorization.

675745645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143051.

The product of its digits is 3528000, while the sum is 49.

The square root of 675745645 is about 25995.1080974863. The cubic root of 675745645 is about 877.5282069271.

The spelling of 675745645 in words is "six hundred seventy-five million, seven hundred forty-five thousand, six hundred forty-five".