29820068811 has 32 divisors (see below), whose sum is σ = 47622120000. Its totient is φ = 18333091584.

The previous prime is 29820068809. The next prime is 29820068827. The reversal of 29820068811 is 11886002892.

It is a happy number.

It is not a de Polignac number, because 29820068811 - 2¹ = 29820068809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29820068801) 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 31 ways as a sum of consecutive naturals, for example, 327705 + ... + 408693.

It is an arithmetic number, because the mean of its divisors is an integer number (1488191250).

Almost surely, 2^29820068811 is an apocalyptic number.

29820068811 is a deficient number, since it is larger than the sum of its proper divisors (17802051189).

29820068811 is a wasteful number, since it uses less digits than its factorization.

29820068811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82060 (or 82054 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 29820068811 in words is "twenty-nine billion, eight hundred twenty million, sixty-eight thousand, eight hundred eleven".