23953979809 has 8 divisors (see below), whose sum is σ = 25005977280. Its totient is φ = 22902859056.

The previous prime is 23953979759. The next prime is 23953979813. The reversal of 23953979809 is 90897935932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23953979809 - 2¹⁵ = 23953947041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23953979869) 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 7 ways as a sum of consecutive naturals, for example, 163027 + ... + 272920.

It is an arithmetic number, because the mean of its divisors is an integer number (3125747160).

Almost surely, 2^23953979809 is an apocalyptic number.

It is an amenable number.

23953979809 is a deficient number, since it is larger than the sum of its proper divisors (1051997471).

23953979809 is a wasteful number, since it uses less digits than its factorization.

23953979809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438359.

The product of its (nonzero) digits is 33067440, while the sum is 64.

The spelling of 23953979809 in words is "twenty-three billion, nine hundred fifty-three million, nine hundred seventy-nine thousand, eight hundred nine".