228816736939 has 16 divisors (see below), whose sum is σ = 264001690368. Its totient is φ = 194256731232.

The previous prime is 228816736937. The next prime is 228816736949. The reversal of 228816736939 is 939637618822.

It is a cyclic number.

It is not a de Polignac number, because 228816736939 - 2¹ = 228816736937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228816736933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4078909 + ... + 4134625.

It is an arithmetic number, because the mean of its divisors is an integer number (16500105648).

Almost surely, 2^228816736939 is an apocalyptic number.

228816736939 is a deficient number, since it is larger than the sum of its proper divisors (35184953429).

228816736939 is a wasteful number, since it uses less digits than its factorization.

228816736939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61314.

The product of its digits is 47029248, while the sum is 64.

The spelling of 228816736939 in words is "two hundred twenty-eight billion, eight hundred sixteen million, seven hundred thirty-six thousand, nine hundred thirty-nine".