29291991163 has 4 divisors (see below), whose sum is σ = 29292342768. Its totient is φ = 29291639560.

The previous prime is 29291991161. The next prime is 29291991181. The reversal of 29291991163 is 36119919292.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 29291991163 - 2¹ = 29291991161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29291991163.

It is not an unprimeable number, because it can be changed into a prime (29291991161) 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, 27633 + ... + 243613.

It is an arithmetic number, because the mean of its divisors is an integer number (7323085692).

Almost surely, 2^29291991163 is an apocalyptic number.

29291991163 is a deficient number, since it is larger than the sum of its proper divisors (351605).

29291991163 is a wasteful number, since it uses less digits than its factorization.

29291991163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351604.

The product of its digits is 472392, while the sum is 52.

The spelling of 29291991163 in words is "twenty-nine billion, two hundred ninety-one million, nine hundred ninety-one thousand, one hundred sixty-three".