23609851512 has 48 divisors (see below), whose sum is σ = 63572292840. Its totient is φ = 7263734592.

The previous prime is 23609851501. The next prime is 23609851513. The reversal of 23609851512 is 21515890632.

It is a super-2 number, since 2×23609851512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23609851513) 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, 2709739 + ... + 2718437.

Almost surely, 2^23609851512 is an apocalyptic number.

It is an amenable number.

23609851512 is an abundant number, since it is smaller than the sum of its proper divisors (39962441328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23609851512 is an frugal number, since it uses more digits than its factorization.

23609851512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17420 (or 8717 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 23609851512 in words is "twenty-three billion, six hundred nine million, eight hundred fifty-one thousand, five hundred twelve".