29049146018729 has 8 divisors (see below), whose sum is σ = 30617837705160. Its totient is φ = 27518254132096.

The previous prime is 29049146018699. The next prime is 29049146018731. The reversal of 29049146018729 is 92781064194092.

It can be written as a sum of positive squares in 4 ways, for example, as 10859364576025 + 18189781442704 = 3295355^2 + 4264948^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29049146018729 - 2¹² = 29049146014633 is a prime.

It is a super-2 number, since 2×29049146018729² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29049146018129) 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, 9449948372 + ... + 9449951445.

It is an arithmetic number, because the mean of its divisors is an integer number (3827229713145).

Almost surely, 2^{29049146018729} is an apocalyptic number.

29049146018729 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29049146018729 is a deficient number, since it is larger than the sum of its proper divisors (1568691686431).

29049146018729 is a wasteful number, since it uses less digits than its factorization.

29049146018729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18899899899.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 29049146018729 in words is "twenty-nine trillion, forty-nine billion, one hundred forty-six million, eighteen thousand, seven hundred twenty-nine".