4645020789 has 16 divisors (see below), whose sum is σ = 7286307840. Its totient is φ = 2914522560.

The previous prime is 4645020781. The next prime is 4645020817. The reversal of 4645020789 is 9870205464.

It is a happy number.

4645020789 is a `hidden beast` number, since 4 + 64 + 502 + 0 + 7 + 89 = 666.

It is not a de Polignac number, because 4645020789 - 2³ = 4645020781 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645020781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5059477 + ... + 5060394.

It is an arithmetic number, because the mean of its divisors is an integer number (455394240).

Almost surely, 2^4645020789 is an apocalyptic number.

It is an amenable number.

4645020789 is a deficient number, since it is larger than the sum of its proper divisors (2641287051).

4645020789 is a wasteful number, since it uses less digits than its factorization.

4645020789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119897 (or 10119891 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 4645020789 is about 68154.3893597470. The cubic root of 4645020789 is about 1668.5115628524.

The spelling of 4645020789 in words is "four billion, six hundred forty-five million, twenty thousand, seven hundred eighty-nine".