28268938630 has 8 divisors (see below), whose sum is σ = 50884089552. Its totient is φ = 11307575448.

The previous prime is 28268938591. The next prime is 28268938787. The reversal of 28268938630 is 3683986282.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413446922 + ... + 1413446941.

It is an arithmetic number, because the mean of its divisors is an integer number (6360511194).

Almost surely, 2^28268938630 is an apocalyptic number.

28268938630 is a deficient number, since it is larger than the sum of its proper divisors (22615150922).

28268938630 is a wasteful number, since it uses less digits than its factorization.

28268938630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826893870.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 28268938630 in words is "twenty-eight billion, two hundred sixty-eight million, nine hundred thirty-eight thousand, six hundred thirty".