4638627667 has 4 divisors (see below), whose sum is σ = 4911488136. Its totient is φ = 4365767200.

The previous prime is 4638627647. The next prime is 4638627671. The reversal of 4638627667 is 7667268364.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4638627667 - 2²⁷ = 4504409939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4638627647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136430209 + ... + 136430242.

It is an arithmetic number, because the mean of its divisors is an integer number (1227872034).

Almost surely, 2^4638627667 is an apocalyptic number.

4638627667 is a deficient number, since it is larger than the sum of its proper divisors (272860469).

4638627667 is a wasteful number, since it uses less digits than its factorization.

4638627667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272860468.

The product of its digits is 12192768, while the sum is 55.

The square root of 4638627667 is about 68107.4714477054. The cubic root of 4638627667 is about 1667.7457323707.

The spelling of 4638627667 in words is "four billion, six hundred thirty-eight million, six hundred twenty-seven thousand, six hundred sixty-seven".