23646977512 has 8 divisors (see below), whose sum is σ = 44338082850. Its totient is φ = 11823488752.

The previous prime is 23646977483. The next prime is 23646977531. The reversal of 23646977512 is 21577964632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23591116836 + 55860676 = 153594^2 + 7474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23646977512.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1477936087 + ... + 1477936102.

Almost surely, 2^23646977512 is an apocalyptic number.

It is an amenable number.

23646977512 is a deficient number, since it is larger than the sum of its proper divisors (20691105338).

23646977512 is a wasteful number, since it uses less digits than its factorization.

23646977512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955872195 (or 2955872191 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 52.

The spelling of 23646977512 in words is "twenty-three billion, six hundred forty-six million, nine hundred seventy-seven thousand, five hundred twelve".