28804909958 has 8 divisors (see below), whose sum is σ = 47135307240. Its totient is φ = 13093140880.

The previous prime is 28804909921. The next prime is 28804909963. The reversal of 28804909958 is 85990940882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28804909958.

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, 654657023 + ... + 654657066.

It is an arithmetic number, because the mean of its divisors is an integer number (5891913405).

Almost surely, 2^28804909958 is an apocalyptic number.

28804909958 is a deficient number, since it is larger than the sum of its proper divisors (18330397282).

28804909958 is a wasteful number, since it uses less digits than its factorization.

28804909958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309314102.

The product of its (nonzero) digits is 14929920, while the sum is 62.

The spelling of 28804909958 in words is "twenty-eight billion, eight hundred four million, nine hundred nine thousand, nine hundred fifty-eight".