228642974895 has 16 divisors (see below), whose sum is σ = 368709304320. Its totient is φ = 120982738464.

The previous prime is 228642974851. The next prime is 228642974897. The reversal of 228642974895 is 598479246822.

It is not a de Polignac number, because 228642974895 - 2¹⁶ = 228642909359 is a prime.

It is a super-2 number, since 2×228642974895² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228642974897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60009375 + ... + 60013184.

It is an arithmetic number, because the mean of its divisors is an integer number (23044331520).

Almost surely, 2^228642974895 is an apocalyptic number.

228642974895 is a deficient number, since it is larger than the sum of its proper divisors (140066329425).

228642974895 is a wasteful number, since it uses less digits than its factorization.

228642974895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120022694.

The product of its digits is 139345920, while the sum is 66.

The spelling of 228642974895 in words is "two hundred twenty-eight billion, six hundred forty-two million, nine hundred seventy-four thousand, eight hundred ninety-five".