28130430563 has 8 divisors (see below), whose sum is σ = 30632048400. Its totient is φ = 25730919648.

The previous prime is 28130430547. The next prime is 28130430593. The reversal of 28130430563 is 36503403182.

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 28130430563 - 2⁴ = 28130430547 is a prime.

It is a super-2 number, since 2×28130430563² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28130430593) 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 7 ways as a sum of consecutive naturals, for example, 25526156 + ... + 25527257.

It is an arithmetic number, because the mean of its divisors is an integer number (3829006050).

Almost surely, 2^28130430563 is an apocalyptic number.

28130430563 is a deficient number, since it is larger than the sum of its proper divisors (2501617837).

28130430563 is a wasteful number, since it uses less digits than its factorization.

28130430563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51053461.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 28130430563 in words is "twenty-eight billion, one hundred thirty million, four hundred thirty thousand, five hundred sixty-three".