2785079123 has 2 divisors, whose sum is σ = 2785079124. Its totient is φ = 2785079122.

The previous prime is 2785079113. The next prime is 2785079159. The reversal of 2785079123 is 3219705872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2785079123 - 2⁴ = 2785079107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2785079113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392539561 + 1392539562.

It is an arithmetic number, because the mean of its divisors is an integer number (1392539562).

Almost surely, 2^2785079123 is an apocalyptic number.

2785079123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785079123 is an equidigital number, since it uses as much as digits as its factorization.

2785079123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 2785079123 is about 52773.8488552806. The cubic root of 2785079123 is about 1406.9516699073.

The spelling of 2785079123 in words is "two billion, seven hundred eighty-five million, seventy-nine thousand, one hundred twenty-three".