228777330240577 has 4 divisors (see below), whose sum is σ = 228781567461060. Its totient is φ = 228773093020096.

The previous prime is 228777330240509. The next prime is 228777330240581. The reversal of 228777330240577 is 775042033777822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 227875901522481 + 901428718096 = 15095559^2 + 949436^2 .

It is a cyclic number.

It is not a de Polignac number, because 228777330240577 - 2³¹ = 228775182756929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228777330244577) 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, 2118529252 + ... + 2118637237.

It is an arithmetic number, because the mean of its divisors is an integer number (57195391865265).

Almost surely, 2^{228777330240577} is an apocalyptic number.

It is an amenable number.

228777330240577 is a deficient number, since it is larger than the sum of its proper divisors (4237220483).

228777330240577 is an equidigital number, since it uses as much as digits as its factorization.

228777330240577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237220482.

The product of its (nonzero) digits is 193616640, while the sum is 64.

The spelling of 228777330240577 in words is "two hundred twenty-eight trillion, seven hundred seventy-seven billion, three hundred thirty million, two hundred forty thousand, five hundred seventy-seven".