29168138227 has 8 divisors (see below), whose sum is σ = 29338584912. Its totient is φ = 28998060000.

The previous prime is 29168138189. The next prime is 29168138239. The reversal of 29168138227 is 72283186192.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29168138227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29168138267) 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, 67477 + ... + 250777.

It is an arithmetic number, because the mean of its divisors is an integer number (3667323114).

Almost surely, 2^29168138227 is an apocalyptic number.

29168138227 is a deficient number, since it is larger than the sum of its proper divisors (170446685).

29168138227 is a wasteful number, since it uses less digits than its factorization.

29168138227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184229.

The product of its digits is 580608, while the sum is 49.

The spelling of 29168138227 in words is "twenty-nine billion, one hundred sixty-eight million, one hundred thirty-eight thousand, two hundred twenty-seven".