28863559953 has 16 divisors (see below), whose sum is σ = 42963496000. Its totient is φ = 19151173440.

The previous prime is 28863559943. The next prime is 28863559957. The reversal of 28863559953 is 35995536882.

28863559953 is a `hidden beast` number, since 2 + 8 + 8 + 6 + 35 + 599 + 5 + 3 = 666.

It is not a de Polignac number, because 28863559953 - 2²⁸ = 28595124497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28863559957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2527528 + ... + 2538921.

It is an arithmetic number, because the mean of its divisors is an integer number (2685218500).

Almost surely, 2^28863559953 is an apocalyptic number.

It is an amenable number.

28863559953 is a deficient number, since it is larger than the sum of its proper divisors (14099936047).

28863559953 is a wasteful number, since it uses less digits than its factorization.

28863559953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066669 (or 5066663 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 63.

The spelling of 28863559953 in words is "twenty-eight billion, eight hundred sixty-three million, five hundred fifty-nine thousand, nine hundred fifty-three".