4638390009 has 8 divisors (see below), whose sum is σ = 6746749152. Its totient is φ = 2811145440.

The previous prime is 4638389999. The next prime is 4638390047. The reversal of 4638390009 is 9000938364.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4638390009 - 2⁸ = 4638389753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4638390209) 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 7 ways as a sum of consecutive naturals, for example, 70278604 + ... + 70278669.

It is an arithmetic number, because the mean of its divisors is an integer number (843343644).

Almost surely, 2^4638390009 is an apocalyptic number.

It is an amenable number.

4638390009 is a deficient number, since it is larger than the sum of its proper divisors (2108359143).

4638390009 is a wasteful number, since it uses less digits than its factorization.

4638390009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140557287.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 4638390009 is about 68105.7266975399. The cubic root of 4638390009 is about 1667.7172498170.

The spelling of 4638390009 in words is "four billion, six hundred thirty-eight million, three hundred ninety thousand, nine".