229161284787 has 8 divisors (see below), whose sum is σ = 306675865600. Its totient is φ = 152210446920.

The previous prime is 229161284777. The next prime is 229161284791. The reversal of 229161284787 is 787482161922.

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

It is not a de Polignac number, because 229161284787 - 2⁴ = 229161284771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229161284747) 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, 140934787 + ... + 140936412.

It is an arithmetic number, because the mean of its divisors is an integer number (38334483200).

Almost surely, 2^229161284787 is an apocalyptic number.

229161284787 is a deficient number, since it is larger than the sum of its proper divisors (77514580813).

229161284787 is a wasteful number, since it uses less digits than its factorization.

229161284787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281871473.

The product of its digits is 5419008, while the sum is 57.

The spelling of 229161284787 in words is "two hundred twenty-nine billion, one hundred sixty-one million, two hundred eighty-four thousand, seven hundred eighty-seven".