28628512832863 has 8 divisors (see below), whose sum is σ = 30313425283920. Its totient is φ = 26943698413440.

The previous prime is 28628512832741. The next prime is 28628512832879. The reversal of 28628512832863 is 36823821582682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28628512832863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28628512832795 and 28628512832804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28628512832663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23906233 + ... + 25075186.

It is an arithmetic number, because the mean of its divisors is an integer number (3789178160490).

Almost surely, 2^{28628512832863} is an apocalyptic number.

28628512832863 is a deficient number, since it is larger than the sum of its proper divisors (1684912451057).

28628512832863 is a wasteful number, since it uses less digits than its factorization.

28628512832863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49015817.

The product of its digits is 106168320, while the sum is 64.

The spelling of 28628512832863 in words is "twenty-eight trillion, six hundred twenty-eight billion, five hundred twelve million, eight hundred thirty-two thousand, eight hundred sixty-three".