29145336228 has 18 divisors (see below), whose sum is σ = 73672933334. Its totient is φ = 9715112064.

The previous prime is 29145336223. The next prime is 29145336229. The reversal of 29145336228 is 82263354192.

29145336228 is a `hidden beast` number, since 2 + 9 + 14 + 5 + 3 + 3 + 622 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28207874304 + 937461924 = 167952^2 + 30618^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (29145336221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 404796301 + ... + 404796372.

Almost surely, 2^29145336228 is an apocalyptic number.

It is an amenable number.

29145336228 is an abundant number, since it is smaller than the sum of its proper divisors (44527597106).

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

29145336228 is a wasteful number, since it uses less digits than its factorization.

29145336228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809592683 (or 809592678 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 29145336228 in words is "twenty-nine billion, one hundred forty-five million, three hundred thirty-six thousand, two hundred twenty-eight".