228937522986 has 32 divisors (see below), whose sum is σ = 511306608000. Its totient is φ = 75929024160.

The previous prime is 228937522939. The next prime is 228937522987. The reversal of 228937522986 is 689225739822.

228937522986 is a `hidden beast` number, since 2 + 28 + 9 + 3 + 7 + 522 + 9 + 86 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228937522987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10641475 + ... + 10662966.

It is an arithmetic number, because the mean of its divisors is an integer number (15978331500).

Almost surely, 2^228937522986 is an apocalyptic number.

228937522986 is an abundant number, since it is smaller than the sum of its proper divisors (282369085014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228937522986 is a wasteful number, since it uses less digits than its factorization.

228937522986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21304651 (or 21304645 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 228937522986 in words is "two hundred twenty-eight billion, nine hundred thirty-seven million, five hundred twenty-two thousand, nine hundred eighty-six".