28654137329 has 16 divisors (see below), whose sum is σ = 31641840000. Its totient is φ = 25840765440.

The previous prime is 28654137283. The next prime is 28654137361. The reversal of 28654137329 is 92373145682.

It is a cyclic number.

It is not a de Polignac number, because 28654137329 - 2⁸ = 28654137073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28654137929) 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, 327104 + ... + 405345.

It is an arithmetic number, because the mean of its divisors is an integer number (1977615000).

Almost surely, 2^28654137329 is an apocalyptic number.

28654137329 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28654137329 is a deficient number, since it is larger than the sum of its proper divisors (2987702671).

28654137329 is a wasteful number, since it uses less digits than its factorization.

28654137329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732568.

The product of its digits is 2177280, while the sum is 50.

The spelling of 28654137329 in words is "twenty-eight billion, six hundred fifty-four million, one hundred thirty-seven thousand, three hundred twenty-nine".