28454084071 has 4 divisors (see below), whose sum is σ = 32518953232. Its totient is φ = 24389214912.

The previous prime is 28454084039. The next prime is 28454084117. The reversal of 28454084071 is 17048045482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28454084071 - 2⁵ = 28454084039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454084171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032434570 + ... + 2032434583.

It is an arithmetic number, because the mean of its divisors is an integer number (8129738308).

Almost surely, 2^28454084071 is an apocalyptic number.

28454084071 is a deficient number, since it is larger than the sum of its proper divisors (4064869161).

28454084071 is an equidigital number, since it uses as much as digits as its factorization.

28454084071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064869160.

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 28454084071 in words is "twenty-eight billion, four hundred fifty-four million, eighty-four thousand, seventy-one".