228444537601 has 4 divisors (see below), whose sum is σ = 261079471552. Its totient is φ = 195809603652.

The previous prime is 228444537583. The next prime is 228444537613. The reversal of 228444537601 is 106735444822.

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 228444537601 - 2⁵ = 228444537569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228244537601) 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, 16317466965 + ... + 16317466978.

It is an arithmetic number, because the mean of its divisors is an integer number (65269867888).

Almost surely, 2^228444537601 is an apocalyptic number.

It is an amenable number.

228444537601 is a deficient number, since it is larger than the sum of its proper divisors (32634933951).

228444537601 is an equidigital number, since it uses as much as digits as its factorization.

228444537601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32634933950.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 228444537601 in words is "two hundred twenty-eight billion, four hundred forty-four million, five hundred thirty-seven thousand, six hundred one".