228837745457 has 4 divisors (see below), whose sum is σ = 228980681316. Its totient is φ = 228694809600.

The previous prime is 228837745421. The next prime is 228837745469. The reversal of 228837745457 is 754547738822.

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 193810377121 + 35027368336 = 440239^2 + 187156^2 .

It is a cyclic number.

It is not a de Polignac number, because 228837745457 - 2¹⁴ = 228837729073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228837745457.

It is not an unprimeable number, because it can be changed into a prime (228837745417) 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, 71465528 + ... + 71468729.

It is an arithmetic number, because the mean of its divisors is an integer number (57245170329).

Almost surely, 2^228837745457 is an apocalyptic number.

It is an amenable number.

228837745457 is a deficient number, since it is larger than the sum of its proper divisors (142935859).

228837745457 is a wasteful number, since it uses less digits than its factorization.

228837745457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142935858.

The product of its digits is 105369600, while the sum is 62.

The spelling of 228837745457 in words is "two hundred twenty-eight billion, eight hundred thirty-seven million, seven hundred forty-five thousand, four hundred fifty-seven".