29890111111111 has 8 divisors (see below), whose sum is σ = 31196857802544. Its totient is φ = 28610874876480.

The previous prime is 29890111111103. The next prime is 29890111111123. The reversal of 29890111111111 is 11111111109892.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29890111111111 - 2³ = 29890111111103 is a prime.

It is a super-2 number, since 2×29890111111111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

29890111111111 is a modest number, since divided by 11111111 gives 298901 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29890111111811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6877611981 + ... + 6877616326.

It is an arithmetic number, because the mean of its divisors is an integer number (3899607225318).

Almost surely, 2^{29890111111111} is an apocalyptic number.

29890111111111 is a deficient number, since it is larger than the sum of its proper divisors (1306746691433).

29890111111111 is a wasteful number, since it uses less digits than its factorization.

29890111111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755228401.

The product of its (nonzero) digits is 1296, while the sum is 37.

The spelling of 29890111111111 in words is "twenty-nine trillion, eight hundred ninety billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".