28966378135 has 16 divisors (see below), whose sum is σ = 36644884416. Its totient is φ = 21937056768.

The previous prime is 28966378127. The next prime is 28966378141. The reversal of 28966378135 is 53187366982.

It is a cyclic number.

It is not a de Polignac number, because 28966378135 - 2³ = 28966378127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28966378135.

It is a congruent number.

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, 1287204 + ... + 1309513.

It is an arithmetic number, because the mean of its divisors is an integer number (2290305276).

Almost surely, 2^28966378135 is an apocalyptic number.

28966378135 is a deficient number, since it is larger than the sum of its proper divisors (7678506281).

28966378135 is a wasteful number, since it uses less digits than its factorization.

28966378135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596842.

The product of its digits is 13063680, while the sum is 58.

The spelling of 28966378135 in words is "twenty-eight billion, nine hundred sixty-six million, three hundred seventy-eight thousand, one hundred thirty-five".