2002646279 has 2 divisors, whose sum is σ = 2002646280. Its totient is φ = 2002646278.

The previous prime is 2002646273. The next prime is 2002646309. The reversal of 2002646279 is 9726462002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002646279 - 2¹⁶ = 2002580743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002646273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001323139 + 1001323140.

It is an arithmetic number, because the mean of its divisors is an integer number (1001323140).

Almost surely, 2^2002646279 is an apocalyptic number.

2002646279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002646279 is an equidigital number, since it uses as much as digits as its factorization.

2002646279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2002646279 is about 44750.9360684221. The cubic root of 2002646279 is about 1260.4764887618.

The spelling of 2002646279 in words is "two billion, two million, six hundred forty-six thousand, two hundred seventy-nine".