28861885467 has 16 divisors (see below), whose sum is σ = 43199160480. Its totient is φ = 19042891776.

The previous prime is 28861885427. The next prime is 28861885471. The reversal of 28861885467 is 76458816882.

28861885467 is a `hidden beast` number, since 2 + 8 + 8 + 6 + 1 + 88 + 546 + 7 = 666.

It is not a de Polignac number, because 28861885467 - 2⁸ = 28861885211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28861885417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5507478 + ... + 5512715.

It is an arithmetic number, because the mean of its divisors is an integer number (2699947530).

Almost surely, 2^28861885467 is an apocalyptic number.

28861885467 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28861885467 is a deficient number, since it is larger than the sum of its proper divisors (14337275013).

28861885467 is a wasteful number, since it uses less digits than its factorization.

28861885467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020299 (or 11020293 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 63.

The spelling of 28861885467 in words is "twenty-eight billion, eight hundred sixty-one million, eight hundred eighty-five thousand, four hundred sixty-seven".