28542667893 has 16 divisors (see below), whose sum is σ = 38296903680. Its totient is φ = 18908511536.

The previous prime is 28542667889. The next prime is 28542667919. The reversal of 28542667893 is 39876624582.

It is a cyclic number.

It is not a de Polignac number, because 28542667893 - 2² = 28542667889 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28542667093) 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 15 ways as a sum of consecutive naturals, for example, 2036596 + ... + 2050562.

It is an arithmetic number, because the mean of its divisors is an integer number (2393556480).

Almost surely, 2^28542667893 is an apocalyptic number.

It is an amenable number.

28542667893 is a deficient number, since it is larger than the sum of its proper divisors (9754235787).

28542667893 is a wasteful number, since it uses less digits than its factorization.

28542667893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18216.

The product of its digits is 34836480, while the sum is 60.

The spelling of 28542667893 in words is "twenty-eight billion, five hundred forty-two million, six hundred sixty-seven thousand, eight hundred ninety-three".