28338720268 has 12 divisors (see below), whose sum is σ = 49790342952. Its totient is φ = 14112908000.

The previous prime is 28338720247. The next prime is 28338720269. The reversal of 28338720268 is 86202783382.

It is not an unprimeable number, because it can be changed into a prime (28338720269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14111905 + ... + 14113912.

It is an arithmetic number, because the mean of its divisors is an integer number (4149195246).

Almost surely, 2^28338720268 is an apocalyptic number.

It is an amenable number.

28338720268 is a deficient number, since it is larger than the sum of its proper divisors (21451622684).

28338720268 is a wasteful number, since it uses less digits than its factorization.

28338720268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28226072 (or 28226070 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 28338720268 in words is "twenty-eight billion, three hundred thirty-eight million, seven hundred twenty thousand, two hundred sixty-eight".