28853887865 has 8 divisors (see below), whose sum is σ = 37772362368. Its totient is φ = 20984645680.

The previous prime is 28853887847. The next prime is 28853887897. The reversal of 28853887865 is 56878835882.

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

It is not a de Polignac number, because 28853887865 - 2¹² = 28853883769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28853887795 and 28853887804.

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, 262308017 + ... + 262308126.

It is an arithmetic number, because the mean of its divisors is an integer number (4721545296).

Almost surely, 2^28853887865 is an apocalyptic number.

It is an amenable number.

28853887865 is a deficient number, since it is larger than the sum of its proper divisors (8918474503).

28853887865 is a wasteful number, since it uses less digits than its factorization.

28853887865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524616159.

The product of its digits is 206438400, while the sum is 68.

The spelling of 28853887865 in words is "twenty-eight billion, eight hundred fifty-three million, eight hundred eighty-seven thousand, eight hundred sixty-five".