229820247687 has 16 divisors (see below), whose sum is σ = 320766842880. Its totient is φ = 146182797600.

The previous prime is 229820247667. The next prime is 229820247691. The reversal of 229820247687 is 786742028922.

229820247687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229820247687 - 2³² = 225525280391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229820247667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17396112 + ... + 17409317.

It is an arithmetic number, because the mean of its divisors is an integer number (20047927680).

Almost surely, 2^229820247687 is an apocalyptic number.

229820247687 is a deficient number, since it is larger than the sum of its proper divisors (90946595193).

229820247687 is a wasteful number, since it uses less digits than its factorization.

229820247687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34805534.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 229820247687 in words is "two hundred twenty-nine billion, eight hundred twenty million, two hundred forty-seven thousand, six hundred eighty-seven".