28564316384 has 24 divisors (see below), whose sum is σ = 56449839600. Its totient is φ = 14227849216.

The previous prime is 28564316369. The next prime is 28564316399. The reversal of 28564316384 is 48361346582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28564316369) and next prime (28564316399).

It is a super-3 number, since 3×28564316384³ (a number of 32 digits) contains 333 as substring.

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, 1688609 + ... + 1705440.

It is an arithmetic number, because the mean of its divisors is an integer number (2352076650).

Almost surely, 2^28564316384 is an apocalyptic number.

It is an amenable number.

28564316384 is a deficient number, since it is larger than the sum of its proper divisors (27885523216).

28564316384 is a wasteful number, since it uses less digits than its factorization.

28564316384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394322 (or 3394314 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The spelling of 28564316384 in words is "twenty-eight billion, five hundred sixty-four million, three hundred sixteen thousand, three hundred eighty-four".