23608729249 has 6 divisors (see below), whose sum is σ = 27463215714. Its totient is φ = 20236053600.

The previous prime is 23608729211. The next prime is 23608729259. The reversal of 23608729249 is 94292780632.

It can be written as a sum of positive squares in only one way, i.e., 20393839249 + 3214890000 = 142807^2 + 56700^2 .

It is not a de Polignac number, because 23608729249 - 2¹⁵ = 23608696481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23608729196 and 23608729205.

It is not an unprimeable number, because it can be changed into a prime (23608729259) 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 5 ways as a sum of consecutive naturals, for example, 240905352 + ... + 240905449.

It is an arithmetic number, because the mean of its divisors is an integer number (4577202619).

Almost surely, 2^23608729249 is an apocalyptic number.

It is an amenable number.

23608729249 is a deficient number, since it is larger than the sum of its proper divisors (3854486465).

23608729249 is an equidigital number, since it uses as much as digits as its factorization.

23608729249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481810815 (or 481810808 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 23608729249 in words is "twenty-three billion, six hundred eight million, seven hundred twenty-nine thousand, two hundred forty-nine".