28114747181 has 16 divisors (see below), whose sum is σ = 28925527680. Its totient is φ = 27310187520.

The previous prime is 28114747163. The next prime is 28114747187. The reversal of 28114747181 is 18174741182.

It is a cyclic number.

It is not a de Polignac number, because 28114747181 - 2²⁶ = 28047638317 is a prime.

It is a super-2 number, since 2×28114747181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114747187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13937885 + ... + 13939901.

It is an arithmetic number, because the mean of its divisors is an integer number (1807845480).

Almost surely, 2^28114747181 is an apocalyptic number.

It is an amenable number.

28114747181 is a deficient number, since it is larger than the sum of its proper divisors (810780499).

28114747181 is a wasteful number, since it uses less digits than its factorization.

28114747181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364.

The product of its digits is 100352, while the sum is 44.

The spelling of 28114747181 in words is "twenty-eight billion, one hundred fourteen million, seven hundred forty-seven thousand, one hundred eighty-one".