28654021235 has 16 divisors (see below), whose sum is σ = 39375092736. Its totient is φ = 19609397088.

The previous prime is 28654021229. The next prime is 28654021273. The reversal of 28654021235 is 53212045682.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28654021235 - 2⁴ = 28654021219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796199 + ... + 831408.

It is an arithmetic number, because the mean of its divisors is an integer number (2460943296).

Almost surely, 2^28654021235 is an apocalyptic number.

28654021235 is a deficient number, since it is larger than the sum of its proper divisors (10721071501).

28654021235 is a wasteful number, since it uses less digits than its factorization.

28654021235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628122.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 28654021235 in words is "twenty-eight billion, six hundred fifty-four million, twenty-one thousand, two hundred thirty-five".