28994491769043 has 4 divisors (see below), whose sum is σ = 38659322358728. Its totient is φ = 19329661179360.

The previous prime is 28994491769041. The next prime is 28994491769059. The reversal of 28994491769043 is 34096719449982.

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

It is not a de Polignac number, because 28994491769043 - 2¹ = 28994491769041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28994491769041) 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, 4832415294838 + ... + 4832415294843.

It is an arithmetic number, because the mean of its divisors is an integer number (9664830589682).

Almost surely, 2^{28994491769043} is an apocalyptic number.

28994491769043 is a deficient number, since it is larger than the sum of its proper divisors (9664830589685).

28994491769043 is an equidigital number, since it uses as much as digits as its factorization.

28994491769043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664830589684.

The product of its (nonzero) digits is 846526464, while the sum is 75.

The spelling of 28994491769043 in words is "twenty-eight trillion, nine hundred ninety-four billion, four hundred ninety-one million, seven hundred sixty-nine thousand, forty-three".