28471661411 has 8 divisors (see below), whose sum is σ = 28539693600. Its totient is φ = 28403698752.

The previous prime is 28471661377. The next prime is 28471661417. The reversal of 28471661411 is 11416617482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28471661411 - 2³⁴ = 11291792227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28471661417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853991 + ... + 886703.

It is an arithmetic number, because the mean of its divisors is an integer number (3567461700).

Almost surely, 2^28471661411 is an apocalyptic number.

28471661411 is a deficient number, since it is larger than the sum of its proper divisors (68032189).

28471661411 is a wasteful number, since it uses less digits than its factorization.

28471661411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34765.

The product of its digits is 64512, while the sum is 41.

The spelling of 28471661411 in words is "twenty-eight billion, four hundred seventy-one million, six hundred sixty-one thousand, four hundred eleven".