28888974553555 has 8 divisors (see below), whose sum is σ = 34673048571744. Its totient is φ = 23106993571200.

The previous prime is 28888974553547. The next prime is 28888974553577. The reversal of 28888974553555 is 55535547988882.

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

It is not a de Polignac number, because 28888974553555 - 2³ = 28888974553547 is a prime.

It is a Duffinian 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, 523228591 + ... + 523283800.

It is an arithmetic number, because the mean of its divisors is an integer number (4334131071468).

Almost surely, 2^{28888974553555} is an apocalyptic number.

28888974553555 is a deficient number, since it is larger than the sum of its proper divisors (5784074018189).

28888974553555 is a wasteful number, since it uses less digits than its factorization.

28888974553555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046517917.

The product of its digits is 19353600000, while the sum is 82.

The spelling of 28888974553555 in words is "twenty-eight trillion, eight hundred eighty-eight billion, nine hundred seventy-four million, five hundred fifty-three thousand, five hundred fifty-five".