11963924643 has 32 divisors (see below), whose sum is σ = 18015731712. Its totient is φ = 6996535200.

The previous prime is 11963924633. The next prime is 11963924653. The reversal of 11963924643 is 34642936911.

It is an interprime number because it is at equal distance from previous prime (11963924633) and next prime (11963924653).

It is not a de Polignac number, because 11963924643 - 2⁸ = 11963924387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11963924592 and 11963924601.

It is not an unprimeable number, because it can be changed into a prime (11963924603) 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 31 ways as a sum of consecutive naturals, for example, 338130 + ... + 371832.

It is an arithmetic number, because the mean of its divisors is an integer number (562991616).

Almost surely, 2^11963924643 is an apocalyptic number.

11963924643 is a deficient number, since it is larger than the sum of its proper divisors (6051807069).

11963924643 is a wasteful number, since it uses less digits than its factorization.

11963924643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34095.

The product of its digits is 839808, while the sum is 48.

The spelling of 11963924643 in words is "eleven billion, nine hundred sixty-three million, nine hundred twenty-four thousand, six hundred forty-three".