28694016217029 has 8 divisors (see below), whose sum is σ = 38347455549312. Its totient is φ = 19084960514720.

The previous prime is 28694016216953. The next prime is 28694016217049. The reversal of 28694016217029 is 92071261049682.

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 28694016217029 - 2⁴¹ = 26494992961477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28694016217029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28694016217049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11095905984 + ... + 11095908569.

It is an arithmetic number, because the mean of its divisors is an integer number (4793431943664).

Almost surely, 2^{28694016217029} is an apocalyptic number.

It is an amenable number.

28694016217029 is a deficient number, since it is larger than the sum of its proper divisors (9653439332283).

28694016217029 is a wasteful number, since it uses less digits than its factorization.

28694016217029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22191814987.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 28694016217029 in words is "twenty-eight trillion, six hundred ninety-four billion, sixteen million, two hundred seventeen thousand, twenty-nine".