4645918646 has 16 divisors (see below), whose sum is σ = 7336998960. Its totient is φ = 2200296960.

The previous prime is 4645918621. The next prime is 4645918657. The reversal of 4645918646 is 6468195464.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent 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, 363110 + ... + 375686.

It is an arithmetic number, because the mean of its divisors is an integer number (458562435).

Almost surely, 2^4645918646 is an apocalyptic number.

4645918646 is a deficient number, since it is larger than the sum of its proper divisors (2691080314).

4645918646 is a wasteful number, since it uses less digits than its factorization.

4645918646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319.

The product of its digits is 4976640, while the sum is 53.

The square root of 4645918646 is about 68160.9759759938. The cubic root of 4645918646 is about 1668.6190606327.

The spelling of 4645918646 in words is "four billion, six hundred forty-five million, nine hundred eighteen thousand, six hundred forty-six".