23309657906 has 8 divisors (see below), whose sum is σ = 35100536220. Its totient is φ = 11609479168.

The previous prime is 23309657887. The next prime is 23309657939. The reversal of 23309657906 is 60975690332.

It can be written as a sum of positive squares in 2 ways, for example, as 14305356025 + 9004301881 = 119605^2 + 94891^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22674251 + ... + 22675278.

Almost surely, 2^23309657906 is an apocalyptic number.

23309657906 is a deficient number, since it is larger than the sum of its proper divisors (11790878314).

23309657906 is a wasteful number, since it uses less digits than its factorization.

23309657906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45349788.

The product of its (nonzero) digits is 1837080, while the sum is 50.

The spelling of 23309657906 in words is "twenty-three billion, three hundred nine million, six hundred fifty-seven thousand, nine hundred six".