4638374679 has 4 divisors (see below), whose sum is σ = 6184499576. Its totient is φ = 3092249784.

The previous prime is 4638374647. The next prime is 4638374711. The reversal of 4638374679 is 9764738364.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (4638374647) and next prime (4638374711).

It is not a de Polignac number, because 4638374679 - 2⁵ = 4638374647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638374179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773062444 + ... + 773062449.

It is an arithmetic number, because the mean of its divisors is an integer number (1546124894).

Almost surely, 2^4638374679 is an apocalyptic number.

4638374679 is a deficient number, since it is larger than the sum of its proper divisors (1546124897).

4638374679 is a wasteful number, since it uses less digits than its factorization.

4638374679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546124896.

The product of its digits is 18289152, while the sum is 57.

The square root of 4638374679 is about 68105.6141518451. The cubic root of 4638374679 is about 1667.7154125320.

The spelling of 4638374679 in words is "four billion, six hundred thirty-eight million, three hundred seventy-four thousand, six hundred seventy-nine".