28004864941 has 4 divisors (see below), whose sum is σ = 28006317472. Its totient is φ = 28003412412.

The previous prime is 28004864891. The next prime is 28004864989. The reversal of 28004864941 is 14946840082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28004864941 - 2⁹ = 28004864429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28004864891 and 28004864900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28004864341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696951 + ... + 736036.

It is an arithmetic number, because the mean of its divisors is an integer number (7001579368).

Almost surely, 2^28004864941 is an apocalyptic number.

It is an amenable number.

28004864941 is a deficient number, since it is larger than the sum of its proper divisors (1452531).

28004864941 is a wasteful number, since it uses less digits than its factorization.

28004864941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452530.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 28004864941 in words is "twenty-eight billion, four million, eight hundred sixty-four thousand, nine hundred forty-one".