2136719723 has 2 divisors, whose sum is σ = 2136719724. Its totient is φ = 2136719722.

The previous prime is 2136719719. The next prime is 2136719777. The reversal of 2136719723 is 3279176312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2136719723 - 2² = 2136719719 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136799723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068359861 + 1068359862.

It is an arithmetic number, because the mean of its divisors is an integer number (1068359862).

Almost surely, 2^2136719723 is an apocalyptic number.

2136719723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136719723 is an equidigital number, since it uses as much as digits as its factorization.

2136719723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 41.

The square root of 2136719723 is about 46224.6657424367. The cubic root of 2136719723 is about 1287.9999700613. Note that the first 4 decimals are identical.

The spelling of 2136719723 in words is "two billion, one hundred thirty-six million, seven hundred nineteen thousand, seven hundred twenty-three".