47981563636 has 12 divisors (see below), whose sum is σ = 83971692000. Its totient is φ = 23989651640.

The previous prime is 47981563621. The next prime is 47981563661. The reversal of 47981563636 is 63636518974.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183136 + ... + 359863.

It is an arithmetic number, because the mean of its divisors is an integer number (6997641000).

Almost surely, 2^47981563636 is an apocalyptic number.

It is an amenable number.

47981563636 is a deficient number, since it is larger than the sum of its proper divisors (35990128364).

47981563636 is a wasteful number, since it uses less digits than its factorization.

47981563636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565094 (or 565092 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The spelling of 47981563636 in words is "forty-seven billion, nine hundred eighty-one million, five hundred sixty-three thousand, six hundred thirty-six".