2640707079 has 12 divisors (see below), whose sum is σ = 3597459384. Its totient is φ = 1723010224.

The previous prime is 2640707051. The next prime is 2640707093. The reversal of 2640707079 is 9707070462.

It is not a de Polignac number, because 2640707079 - 2¹³ = 2640698887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2640707079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640705079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192612 + ... + 205865.

It is an arithmetic number, because the mean of its divisors is an integer number (299788282).

Almost surely, 2^2640707079 is an apocalyptic number.

2640707079 is a deficient number, since it is larger than the sum of its proper divisors (956752305).

2640707079 is an equidigital number, since it uses as much as digits as its factorization.

2640707079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398574 (or 398527 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 2640707079 is about 51387.8106071858. The cubic root of 2640707079 is about 1382.2080242594.

The spelling of 2640707079 in words is "two billion, six hundred forty million, seven hundred seven thousand, seventy-nine".