2645949079 has 2 divisors, whose sum is σ = 2645949080. Its totient is φ = 2645949078.

The previous prime is 2645949077. The next prime is 2645949199. The reversal of 2645949079 is 9709495462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2645949079 - 2¹ = 2645949077 is a prime.

Together with 2645949077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645949077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322974539 + 1322974540.

It is an arithmetic number, because the mean of its divisors is an integer number (1322974540).

Almost surely, 2^2645949079 is an apocalyptic number.

2645949079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645949079 is an equidigital number, since it uses as much as digits as its factorization.

2645949079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The square root of 2645949079 is about 51438.7896338940. The cubic root of 2645949079 is about 1383.1220149973.

The spelling of 2645949079 in words is "two billion, six hundred forty-five million, nine hundred forty-nine thousand, seventy-nine".