23698920609 has 96 divisors (see below), whose sum is σ = 45255392000. Its totient is φ = 11842225920.

The previous prime is 23698920607. The next prime is 23698920649. The reversal of 23698920609 is 90602989632.

23698920609 is a `hidden beast` number, since 2 + 3 + 6 + 9 + 8 + 9 + 20 + 609 = 666.

It is not a de Polignac number, because 23698920609 - 2¹ = 23698920607 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23698920607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 746949 + ... + 778029.

Almost surely, 2^23698920609 is an apocalyptic number.

It is an amenable number.

23698920609 is a deficient number, since it is larger than the sum of its proper divisors (21556471391).

23698920609 is a wasteful number, since it uses less digits than its factorization.

23698920609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140 (or 31123 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 23698920609 in words is "twenty-three billion, six hundred ninety-eight million, nine hundred twenty thousand, six hundred nine".