29311809724422 has 16 divisors (see below), whose sum is σ = 65137354943280. Its totient is φ = 9770603241456.

The previous prime is 29311809724391. The next prime is 29311809724447. The reversal of 29311809724422 is 22442790811392.

29311809724422 is a `hidden beast` number, since 2 + 9 + 31 + 1 + 80 + 97 + 2 + 442 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 542811291193 = 29311809724422 / (2 + 9 + 3 + 1 + 1 + 8 + 0 + 9 + 7 + 2 + 4 + 4 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271405645543 + ... + 271405645650.

It is an arithmetic number, because the mean of its divisors is an integer number (4071084683955).

Almost surely, 2^{29311809724422} is an apocalyptic number.

29311809724422 is an abundant number, since it is smaller than the sum of its proper divisors (35825545218858).

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

29311809724422 is a wasteful number, since it uses less digits than its factorization.

29311809724422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542811291204 (or 542811291198 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 29311809724422 in words is "twenty-nine trillion, three hundred eleven billion, eight hundred nine million, seven hundred twenty-four thousand, four hundred twenty-two".