2646271967 has 4 divisors (see below), whose sum is σ = 2649696120. Its totient is φ = 2642847816.

The previous prime is 2646271963. The next prime is 2646272009. The reversal of 2646271967 is 7691726462.

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

It is a cyclic number.

It is not a de Polignac number, because 2646271967 - 2² = 2646271963 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 (2646271963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710917 + ... + 1712462.

It is an arithmetic number, because the mean of its divisors is an integer number (662424030).

Almost surely, 2^2646271967 is an apocalyptic number.

2646271967 is a deficient number, since it is larger than the sum of its proper divisors (3424153).

2646271967 is an equidigital number, since it uses as much as digits as its factorization.

2646271967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424152.

The product of its digits is 1524096, while the sum is 50.

The square root of 2646271967 is about 51441.9281034450. The cubic root of 2646271967 is about 1383.1782739958.

The spelling of 2646271967 in words is "two billion, six hundred forty-six million, two hundred seventy-one thousand, nine hundred sixty-seven".