28563065641 has 8 divisors (see below), whose sum is σ = 31296978144. Its totient is φ = 25852031520.

The previous prime is 28563065599. The next prime is 28563065653. The reversal of 28563065641 is 14656036582.

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

It is a cyclic number.

It is not a de Polignac number, because 28563065641 - 2⁷ = 28563065513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28563065591 and 28563065600.

It is not an unprimeable number, because it can be changed into a prime (28563060641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716980 + ... + 5721973.

It is an arithmetic number, because the mean of its divisors is an integer number (3912122268).

Almost surely, 2^28563065641 is an apocalyptic number.

It is an amenable number.

28563065641 is a deficient number, since it is larger than the sum of its proper divisors (2733912503).

28563065641 is a wasteful number, since it uses less digits than its factorization.

28563065641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11439191.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 28563065641 in words is "twenty-eight billion, five hundred sixty-three million, sixty-five thousand, six hundred forty-one".