2108742723 has 12 divisors (see below), whose sum is σ = 3046361760. Its totient is φ = 1405643856.

The previous prime is 2108742707. The next prime is 2108742767. The reversal of 2108742723 is 3272478012.

It is not a de Polignac number, because 2108742723 - 2⁴ = 2108742707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2108742773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115990 + ... + 132932.

It is an arithmetic number, because the mean of its divisors is an integer number (253863480).

Almost surely, 2^2108742723 is an apocalyptic number.

2108742723 is a deficient number, since it is larger than the sum of its proper divisors (937619037).

2108742723 is a wasteful number, since it uses less digits than its factorization.

2108742723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30778 (or 30775 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 2108742723 is about 45921.0488011761. The cubic root of 2108742723 is about 1282.3538075327.

The spelling of 2108742723 in words is "two billion, one hundred eight million, seven hundred forty-two thousand, seven hundred twenty-three".