7143489645 has 16 divisors (see below), whose sum is σ = 11430875520. Its totient is φ = 3809430464.

The previous prime is 7143489623. The next prime is 7143489659. The reversal of 7143489645 is 5469843417.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7143489645 - 2⁶ = 7143489581 is a prime.

It is a super-3 number, since 3×7143489645³ (a number of 31 digits) contains 333 as substring.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146047 + ... + 188723.

It is an arithmetic number, because the mean of its divisors is an integer number (714429720).

Almost surely, 2^7143489645 is an apocalyptic number.

It is an amenable number.

7143489645 is a deficient number, since it is larger than the sum of its proper divisors (4287385875).

7143489645 is a wasteful number, since it uses less digits than its factorization.

7143489645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53844.

The product of its digits is 2903040, while the sum is 51.

The square root of 7143489645 is about 84519.1673231581. The cubic root of 7143489645 is about 1925.9136289418.

The spelling of 7143489645 in words is "seven billion, one hundred forty-three million, four hundred eighty-nine thousand, six hundred forty-five".