28349487328 has 24 divisors (see below), whose sum is σ = 55905958080. Its totient is φ = 14151148800.

The previous prime is 28349487289. The next prime is 28349487367. The reversal of 28349487328 is 82378494382.

It is an interprime number because it is at equal distance from previous prime (28349487289) and next prime (28349487367).

It is a congruent number.

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, 717808 + ... + 756271.

It is an arithmetic number, because the mean of its divisors is an integer number (2329414920).

Almost surely, 2^28349487328 is an apocalyptic number.

It is an amenable number.

28349487328 is a deficient number, since it is larger than the sum of its proper divisors (27556470752).

28349487328 is a wasteful number, since it uses less digits than its factorization.

28349487328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474690 (or 1474682 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 58.

The spelling of 28349487328 in words is "twenty-eight billion, three hundred forty-nine million, four hundred eighty-seven thousand, three hundred twenty-eight".