28854631104667 has 24 divisors (see below), whose sum is σ = 30834133948800. Its totient is φ = 26995884410880.

The previous prime is 28854631104661. The next prime is 28854631104727. The reversal of 28854631104667 is 76640113645882.

It is not a de Polignac number, because 28854631104667 - 2¹⁹ = 28854630580379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28854631104661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125374323 + ... + 125604259.

It is an arithmetic number, because the mean of its divisors is an integer number (1284755581200).

Almost surely, 2^{28854631104667} is an apocalyptic number.

28854631104667 is a deficient number, since it is larger than the sum of its proper divisors (1979502844133).

28854631104667 is a wasteful number, since it uses less digits than its factorization.

28854631104667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232551 (or 232534 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 28854631104667 in words is "twenty-eight trillion, eight hundred fifty-four billion, six hundred thirty-one million, one hundred four thousand, six hundred sixty-seven".