28780832235 has 16 divisors (see below), whose sum is σ = 46505268000. Its totient is φ = 15197798400.

The previous prime is 28780832161. The next prime is 28780832257. The reversal of 28780832235 is 53223808782.

It is not a de Polignac number, because 28780832235 - 2¹⁴ = 28780815851 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, 9497110 + ... + 9500139.

It is an arithmetic number, because the mean of its divisors is an integer number (2906579250).

Almost surely, 2^28780832235 is an apocalyptic number.

28780832235 is a deficient number, since it is larger than the sum of its proper divisors (17724435765).

28780832235 is a wasteful number, since it uses less digits than its factorization.

28780832235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997358.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 28780832235 in words is "twenty-eight billion, seven hundred eighty million, eight hundred thirty-two thousand, two hundred thirty-five".