28530868348 has 12 divisors (see below), whose sum is σ = 50259676432. Its totient is φ = 14170960800.

The previous prime is 28530868337. The next prime is 28530868423. The reversal of 28530868348 is 84386803582.

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, 23617665 + ... + 23618872.

Almost surely, 2^28530868348 is an apocalyptic number.

It is an amenable number.

28530868348 is a deficient number, since it is larger than the sum of its proper divisors (21728808084).

28530868348 is a wasteful number, since it uses less digits than its factorization.

28530868348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47236692 (or 47236690 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 55.

The spelling of 28530868348 in words is "twenty-eight billion, five hundred thirty million, eight hundred sixty-eight thousand, three hundred forty-eight".