23871507647 has 8 divisors (see below), whose sum is σ = 25742859744. Its totient is φ = 22005167328.

The previous prime is 23871507637. The next prime is 23871507677. The reversal of 23871507647 is 74670517832.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23871507647 - 2²⁸ = 23603072191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23871507595 and 23871507604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23871507637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243043 + ... + 1262100.

It is an arithmetic number, because the mean of its divisors is an integer number (3217857468).

Almost surely, 2^23871507647 is an apocalyptic number.

23871507647 is a deficient number, since it is larger than the sum of its proper divisors (1871352097).

23871507647 is a wasteful number, since it uses less digits than its factorization.

23871507647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505889.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 23871507647 in words is "twenty-three billion, eight hundred seventy-one million, five hundred seven thousand, six hundred forty-seven".