228988933937369 has 4 divisors (see below), whose sum is σ = 232214130190080. Its totient is φ = 225763737684660.

The previous prime is 228988933937341. The next prime is 228988933937399. The reversal of 228988933937369 is 963739339889822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228988933937369 - 2¹² = 228988933933273 is a prime.

It is a super-2 number, since 2×228988933937369² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228988933937329) 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, 1612598126249 + ... + 1612598126390.

It is an arithmetic number, because the mean of its divisors is an integer number (58053532547520).

Almost surely, 2^{228988933937369} is an apocalyptic number.

It is an amenable number.

228988933937369 is a deficient number, since it is larger than the sum of its proper divisors (3225196252711).

228988933937369 is an equidigital number, since it uses as much as digits as its factorization.

228988933937369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225196252710.

The product of its digits is 45712429056, while the sum is 89.

The spelling of 228988933937369 in words is "two hundred twenty-eight trillion, nine hundred eighty-eight billion, nine hundred thirty-three million, nine hundred thirty-seven thousand, three hundred sixty-nine".