28951658329 has 8 divisors (see below), whose sum is σ = 33245923680. Its totient is φ = 24934442400.

The previous prime is 28951658327. The next prime is 28951658341. The reversal of 28951658329 is 92385615982.

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 28951658329 - 2¹ = 28951658327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28951658321) 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 7 ways as a sum of consecutive naturals, for example, 69262132 + ... + 69262549.

It is an arithmetic number, because the mean of its divisors is an integer number (4155740460).

Almost surely, 2^28951658329 is an apocalyptic number.

It is an amenable number.

28951658329 is a deficient number, since it is larger than the sum of its proper divisors (4294265351).

28951658329 is a wasteful number, since it uses less digits than its factorization.

28951658329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138524711.

The product of its digits is 9331200, while the sum is 58.

The spelling of 28951658329 in words is "twenty-eight billion, nine hundred fifty-one million, six hundred fifty-eight thousand, three hundred twenty-nine".