4638169912 has 8 divisors (see below), whose sum is σ = 8696568600. Its totient is φ = 2319084952.

The previous prime is 4638169909. The next prime is 4638169937. The reversal of 4638169912 is 2199618364.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289885612 + ... + 289885627.

It is an arithmetic number, because the mean of its divisors is an integer number (1087071075).

Almost surely, 2^4638169912 is an apocalyptic number.

It is an amenable number.

4638169912 is a deficient number, since it is larger than the sum of its proper divisors (4058398688).

4638169912 is a wasteful number, since it uses less digits than its factorization.

4638169912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579771245 (or 579771241 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 4638169912 is about 68104.1108304044. The cubic root of 4638169912 is about 1667.6908710254.

The spelling of 4638169912 in words is "four billion, six hundred thirty-eight million, one hundred sixty-nine thousand, nine hundred twelve".