28301881467 has 4 divisors (see below), whose sum is σ = 37735841960. Its totient is φ = 18867920976.

The previous prime is 28301881457. The next prime is 28301881493. The reversal of 28301881467 is 76418810382.

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

It is not a de Polignac number, because 28301881467 - 2⁷ = 28301881339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28301881457) 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, 4716980242 + ... + 4716980247.

It is an arithmetic number, because the mean of its divisors is an integer number (9433960490).

Almost surely, 2^28301881467 is an apocalyptic number.

28301881467 is a deficient number, since it is larger than the sum of its proper divisors (9433960493).

28301881467 is an equidigital number, since it uses as much as digits as its factorization.

28301881467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9433960492.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 28301881467 in words is "twenty-eight billion, three hundred one million, eight hundred eighty-one thousand, four hundred sixty-seven".