228267642215 has 16 divisors (see below), whose sum is σ = 279783054720. Its totient is φ = 178707129600.

The previous prime is 228267642193. The next prime is 228267642223. The reversal of 228267642215 is 512246762822.

It is not a de Polignac number, because 228267642215 - 2²⁸ = 227999206759 is a prime.

It is a super-2 number, since 2×228267642215² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 228267642215.

It is a congruent number.

It is an unprimeable number.

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, 2053565 + ... + 2161865.

It is an arithmetic number, because the mean of its divisors is an integer number (17486440920).

Almost surely, 2^228267642215 is an apocalyptic number.

228267642215 is a deficient number, since it is larger than the sum of its proper divisors (51515412505).

228267642215 is a wasteful number, since it uses less digits than its factorization.

228267642215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117322.

The product of its digits is 1290240, while the sum is 47.

The spelling of 228267642215 in words is "two hundred twenty-eight billion, two hundred sixty-seven million, six hundred forty-two thousand, two hundred fifteen".