28315168844 has 12 divisors (see below), whose sum is σ = 50391402600. Its totient is φ = 13917625248.

The previous prime is 28315168823. The next prime is 28315168867. The reversal of 28315168844 is 44886151382.

It is a junction number, because it is equal to n+sod(n) for n = 28315168792 and 28315168801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59989529 + ... + 59990000.

It is an arithmetic number, because the mean of its divisors is an integer number (4199283550).

Almost surely, 2^28315168844 is an apocalyptic number.

It is an amenable number.

28315168844 is a deficient number, since it is larger than the sum of its proper divisors (22076233756).

28315168844 is a wasteful number, since it uses less digits than its factorization.

28315168844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119979592 (or 119979590 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The spelling of 28315168844 in words is "twenty-eight billion, three hundred fifteen million, one hundred sixty-eight thousand, eight hundred forty-four".