28969445141 has 16 divisors (see below), whose sum is σ = 37531267200. Its totient is φ = 21714516288.

The previous prime is 28969445117. The next prime is 28969445171. The reversal of 28969445141 is 14154496982.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28969445141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28969445111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8375786 + ... + 8379243.

It is an arithmetic number, because the mean of its divisors is an integer number (2345704200).

Almost surely, 2^28969445141 is an apocalyptic number.

It is an amenable number.

28969445141 is a deficient number, since it is larger than the sum of its proper divisors (8561822059).

28969445141 is a wasteful number, since it uses less digits than its factorization.

28969445141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16755068.

The product of its digits is 2488320, while the sum is 53.

The spelling of 28969445141 in words is "twenty-eight billion, nine hundred sixty-nine million, four hundred forty-five thousand, one hundred forty-one".