23683928409 has 12 divisors (see below), whose sum is σ = 34222763796. Its totient is φ = 15783449472.

The previous prime is 23683928399. The next prime is 23683928417. The reversal of 23683928409 is 90482938632.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15173312400 + 8510616009 = 123180^2 + 92253^2 .

It is not a de Polignac number, because 23683928409 - 2¹³ = 23683920217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23683928479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460572 + ... + 509405.

It is an arithmetic number, because the mean of its divisors is an integer number (2851896983).

Almost surely, 2^23683928409 is an apocalyptic number.

It is an amenable number.

23683928409 is a deficient number, since it is larger than the sum of its proper divisors (10538835387).

23683928409 is a wasteful number, since it uses less digits than its factorization.

23683928409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972696 (or 972693 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 23683928409 in words is "twenty-three billion, six hundred eighty-three million, nine hundred twenty-eight thousand, four hundred nine".