28976294389 has 8 divisors (see below), whose sum is σ = 33137693568. Its totient is φ = 24820377360.

The previous prime is 28976294383. The next prime is 28976294407. The reversal of 28976294389 is 98349267982.

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 28976294389 - 2³ = 28976294381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28976294381) 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, 1359202 + ... + 1380355.

It is an arithmetic number, because the mean of its divisors is an integer number (4142211696).

Almost surely, 2^28976294389 is an apocalyptic number.

It is an amenable number.

28976294389 is a deficient number, since it is larger than the sum of its proper divisors (4161399179).

28976294389 is a wasteful number, since it uses less digits than its factorization.

28976294389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741075.

The product of its digits is 94058496, while the sum is 67.

The spelling of 28976294389 in words is "twenty-eight billion, nine hundred seventy-six million, two hundred ninety-four thousand, three hundred eighty-nine".