228969565399 has 4 divisors (see below), whose sum is σ = 228982144360. Its totient is φ = 228956986440.

The previous prime is 228969565381. The next prime is 228969565441. The reversal of 228969565399 is 993565969822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228969565399 - 2⁷ = 228969565271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228969565499) 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, 6262137 + ... + 6298594.

It is an arithmetic number, because the mean of its divisors is an integer number (57245536090).

Almost surely, 2^228969565399 is an apocalyptic number.

228969565399 is a deficient number, since it is larger than the sum of its proper divisors (12578961).

228969565399 is a wasteful number, since it uses less digits than its factorization.

228969565399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578960.

The product of its digits is 566870400, while the sum is 73.

The spelling of 228969565399 in words is "two hundred twenty-eight billion, nine hundred sixty-nine million, five hundred sixty-five thousand, three hundred ninety-nine".