4138664907 has 32 divisors (see below), whose sum is σ = 6182265600. Its totient is φ = 2445190272.

The previous prime is 4138664891. The next prime is 4138664923. The reversal of 4138664907 is 7094668314.

It is an interprime number because it is at equal distance from previous prime (4138664891) and next prime (4138664923).

It is not a de Polignac number, because 4138664907 - 2⁴ = 4138664891 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4138664407) 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 31 ways as a sum of consecutive naturals, for example, 192228 + ... + 212670.

It is an arithmetic number, because the mean of its divisors is an integer number (193195800).

Almost surely, 2^4138664907 is an apocalyptic number.

4138664907 is a deficient number, since it is larger than the sum of its proper divisors (2043600693).

4138664907 is a wasteful number, since it uses less digits than its factorization.

4138664907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20667.

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 4138664907 is about 64332.4560933282. The cubic root of 4138664907 is about 1605.5361487496.

The spelling of 4138664907 in words is "four billion, one hundred thirty-eight million, six hundred sixty-four thousand, nine hundred seven".