29791140129 has 6 divisors (see below), whose sum is σ = 43031646866. Its totient is φ = 19860760080.

The previous prime is 29791140107. The next prime is 29791140131. The reversal of 29791140129 is 92104119792.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28848343104 + 942797025 = 169848^2 + 30705^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29791140129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29791140179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1655063332 + ... + 1655063349.

Almost surely, 2^29791140129 is an apocalyptic number.

It is an amenable number.

29791140129 is a deficient number, since it is larger than the sum of its proper divisors (13240506737).

29791140129 is a wasteful number, since it uses less digits than its factorization.

29791140129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310126687 (or 3310126684 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 29791140129 in words is "twenty-nine billion, seven hundred ninety-one million, one hundred forty thousand, one hundred twenty-nine".