28563854549131 has 8 divisors (see below), whose sum is σ = 31160838067200. Its totient is φ = 25966915942440.

The previous prime is 28563854549081. The next prime is 28563854549221. The reversal of 28563854549131 is 13194545836582.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-28563854549131 is a prime.

It is a super-2 number, since 2×28563854549131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28563854549731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9891091 + ... + 12448348.

It is an arithmetic number, because the mean of its divisors is an integer number (3895104758400).

Almost surely, 2^{28563854549131} is an apocalyptic number.

28563854549131 is a deficient number, since it is larger than the sum of its proper divisors (2596983518069).

28563854549131 is a wasteful number, since it uses less digits than its factorization.

28563854549131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22455689.

The product of its digits is 124416000, while the sum is 64.

The spelling of 28563854549131 in words is "twenty-eight trillion, five hundred sixty-three billion, eight hundred fifty-four million, five hundred forty-nine thousand, one hundred thirty-one".