28877546668 has 6 divisors (see below), whose sum is σ = 50535706676. Its totient is φ = 14438773332.

The previous prime is 28877546657. The next prime is 28877546671. The reversal of 28877546668 is 86664577882.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3609693330 + ... + 3609693337.

Almost surely, 2^28877546668 is an apocalyptic number.

It is an amenable number.

28877546668 is a deficient number, since it is larger than the sum of its proper divisors (21658160008).

28877546668 is a wasteful number, since it uses less digits than its factorization.

28877546668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219386671 (or 7219386669 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 67.

The spelling of 28877546668 in words is "twenty-eight billion, eight hundred seventy-seven million, five hundred forty-six thousand, six hundred sixty-eight".