228863948986 has 8 divisors (see below), whose sum is σ = 343300868820. Its totient is φ = 114430326048.

The previous prime is 228863948923. The next prime is 228863948987. The reversal of 228863948986 is 689849368822.

It can be written as a sum of positive squares in 2 ways, for example, as 190362053025 + 38501895961 = 436305^2 + 196219^2 .

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

It is not an unprimeable number, because it can be changed into a prime (228863948987) 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, 642681 + ... + 933148.

Almost surely, 2^228863948986 is an apocalyptic number.

228863948986 is a deficient number, since it is larger than the sum of its proper divisors (114436919834).

228863948986 is a wasteful number, since it uses less digits than its factorization.

228863948986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648448.

The product of its digits is 573308928, while the sum is 73.

The spelling of 228863948986 in words is "two hundred twenty-eight billion, eight hundred sixty-three million, nine hundred forty-eight thousand, nine hundred eighty-six".