22871020712647 has 4 divisors (see below), whose sum is σ = 23659676599320. Its totient is φ = 22082364825976.

The previous prime is 22871020712549. The next prime is 22871020712653. The reversal of 22871020712647 is 74621702017822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22871020712647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22871020712647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22871020716647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394327943293 + ... + 394327943350.

It is an arithmetic number, because the mean of its divisors is an integer number (5914919149830).

Almost surely, 2^{22871020712647} is an apocalyptic number.

22871020712647 is a deficient number, since it is larger than the sum of its proper divisors (788655886673).

22871020712647 is an equidigital number, since it uses as much as digits as its factorization.

22871020712647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788655886672.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 22871020712647 in words is "twenty-two trillion, eight hundred seventy-one billion, twenty million, seven hundred twelve thousand, six hundred forty-seven".