28398675311968 has 48 divisors (see below), whose sum is σ = 60211906176240. Its totient is φ = 13106808101376.

The previous prime is 28398675311947. The next prime is 28398675312017. The reversal of 28398675311968 is 86911357689382.

It is a junction number, because it is equal to n+sod(n) for n = 28398675311894 and 28398675311903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20026671 + ... + 21397777.

It is an arithmetic number, because the mean of its divisors is an integer number (1254414712005).

Almost surely, 2^{28398675311968} is an apocalyptic number.

It is an amenable number.

28398675311968 is an abundant number, since it is smaller than the sum of its proper divisors (31813230864272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28398675311968 is a wasteful number, since it uses less digits than its factorization.

28398675311968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420919 (or 1420911 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 76.

The spelling of 28398675311968 in words is "twenty-eight trillion, three hundred ninety-eight billion, six hundred seventy-five million, three hundred eleven thousand, nine hundred sixty-eight".