28928268351 has 24 divisors (see below), whose sum is σ = 41875101216. Its totient is φ = 19244111040.

The previous prime is 28928268323. The next prime is 28928268353. The reversal of 28928268351 is 15386282982.

It is a happy number.

28928268351 is a `hidden beast` number, since 2 + 8 + 9 + 28 + 268 + 351 = 666.

It is not a de Polignac number, because 28928268351 - 2⁶ = 28928268287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28928268353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12516486 + ... + 12518796.

It is an arithmetic number, because the mean of its divisors is an integer number (1744795884).

Almost surely, 2^28928268351 is an apocalyptic number.

28928268351 is a deficient number, since it is larger than the sum of its proper divisors (12946832865).

28928268351 is a wasteful number, since it uses less digits than its factorization.

28928268351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703 (or 4700 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 28928268351 in words is "twenty-eight billion, nine hundred twenty-eight million, two hundred sixty-eight thousand, three hundred fifty-one".