4000321279 has 2 divisors, whose sum is σ = 4000321280. Its totient is φ = 4000321278.

The previous prime is 4000321271. The next prime is 4000321301. The reversal of 4000321279 is 9721230004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000321279 - 2³ = 4000321271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000321271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000160639 + 2000160640.

It is an arithmetic number, because the mean of its divisors is an integer number (2000160640).

Almost surely, 2^4000321279 is an apocalyptic number.

4000321279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000321279 is an equidigital number, since it uses as much as digits as its factorization.

4000321279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4000321279 is about 63248.0930858789. The cubic root of 4000321279 is about 1587.4435507156.

The spelling of 4000321279 in words is "four billion, three hundred twenty-one thousand, two hundred seventy-nine".