28946158329 has 48 divisors (see below), whose sum is σ = 44315736192. Its totient is φ = 16761888000.

The previous prime is 28946158321. The next prime is 28946158357. The reversal of 28946158329 is 92385164982.

It is not a de Polignac number, because 28946158329 - 2³ = 28946158321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28946158321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12363699 + ... + 12366039.

It is an arithmetic number, because the mean of its divisors is an integer number (923244504).

Almost surely, 2^28946158329 is an apocalyptic number.

It is an amenable number.

28946158329 is a deficient number, since it is larger than the sum of its proper divisors (15369577863).

28946158329 is a wasteful number, since it uses less digits than its factorization.

28946158329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870 (or 3859 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 28946158329 in words is "twenty-eight billion, nine hundred forty-six million, one hundred fifty-eight thousand, three hundred twenty-nine".