28888574450 has 48 divisors (see below), whose sum is σ = 54196084800. Its totient is φ = 11456088000.

The previous prime is 28888574443. The next prime is 28888574483. The reversal of 28888574450 is 5447588882.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28888574450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4250555 + ... + 4257345.

It is an arithmetic number, because the mean of its divisors is an integer number (1129085100).

Almost surely, 2^28888574450 is an apocalyptic number.

28888574450 is a deficient number, since it is larger than the sum of its proper divisors (25307510350).

28888574450 is a wasteful number, since it uses less digits than its factorization.

28888574450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523 (or 7518 counting only the distinct ones).

The product of its (nonzero) digits is 22937600, while the sum is 59.

The spelling of 28888574450 in words is "twenty-eight billion, eight hundred eighty-eight million, five hundred seventy-four thousand, four hundred fifty".