28877546667 has 32 divisors (see below), whose sum is σ = 39229118208. Its totient is φ = 18892469376.

The previous prime is 28877546657. The next prime is 28877546671. The reversal of 28877546667 is 76664577882.

It is not a de Polignac number, because 28877546667 - 2⁴ = 28877546651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28877546598 and 28877546607.

It is not an unprimeable number, because it can be changed into a prime (28877546657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42280108 + ... + 42280790.

It is an arithmetic number, because the mean of its divisors is an integer number (1225909944).

Almost surely, 2^28877546667 is an apocalyptic number.

28877546667 is a deficient number, since it is larger than the sum of its proper divisors (10351571541).

28877546667 is a wasteful number, since it uses less digits than its factorization.

28877546667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659.

The product of its digits is 189665280, while the sum is 66.

The spelling of 28877546667 in words is "twenty-eight billion, eight hundred seventy-seven million, five hundred forty-six thousand, six hundred sixty-seven".