229136282772 has 12 divisors (see below), whose sum is σ = 534651326496. Its totient is φ = 76378760920.

The previous prime is 229136282761. The next prime is 229136282779. The reversal of 229136282772 is 277282631922.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229136282779) 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, 9547345104 + ... + 9547345127.

It is an arithmetic number, because the mean of its divisors is an integer number (44554277208).

Almost surely, 2^229136282772 is an apocalyptic number.

It is an amenable number.

229136282772 is an abundant number, since it is smaller than the sum of its proper divisors (305515043724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229136282772 is a wasteful number, since it uses less digits than its factorization.

229136282772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19094690238 (or 19094690236 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 229136282772 in words is "two hundred twenty-nine billion, one hundred thirty-six million, two hundred eighty-two thousand, seven hundred seventy-two".