28673107863 has 4 divisors (see below), whose sum is σ = 38230810488. Its totient is φ = 19115405240.

The previous prime is 28673107847. The next prime is 28673107867. The reversal of 28673107863 is 36870137682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28673107863 - 2⁴ = 28673107847 is a prime.

It is a super-2 number, since 2×28673107863² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28673107867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4778851308 + ... + 4778851313.

It is an arithmetic number, because the mean of its divisors is an integer number (9557702622).

Almost surely, 2^28673107863 is an apocalyptic number.

28673107863 is a deficient number, since it is larger than the sum of its proper divisors (9557702625).

28673107863 is an equidigital number, since it uses as much as digits as its factorization.

28673107863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557702624.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 28673107863 in words is "twenty-eight billion, six hundred seventy-three million, one hundred seven thousand, eight hundred sixty-three".