29089331686 has 32 divisors (see below), whose sum is σ = 46573963200. Its totient is φ = 13578756096.

The previous prime is 29089331681. The next prime is 29089331693. The reversal of 29089331686 is 68613398092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29089331681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4165830 + ... + 4172806.

It is an arithmetic number, because the mean of its divisors is an integer number (1455436350).

Almost surely, 2^29089331686 is an apocalyptic number.

29089331686 is a deficient number, since it is larger than the sum of its proper divisors (17484631514).

29089331686 is a wasteful number, since it uses less digits than its factorization.

29089331686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 29089331686 in words is "twenty-nine billion, eighty-nine million, three hundred thirty-one thousand, six hundred eighty-six".