228551287194 has 48 divisors (see below), whose sum is σ = 505176497280. Its totient is φ = 74660916960.

The previous prime is 228551287157. The next prime is 228551287207. The reversal of 228551287194 is 491782155822.

It is a happy number.

228551287194 is a `hidden beast` number, since 2 + 2 + 8 + 551 + 2 + 87 + 1 + 9 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 228551287194.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322009 + ... + 748860.

It is an arithmetic number, because the mean of its divisors is an integer number (10524510360).

Almost surely, 2^228551287194 is an apocalyptic number.

228551287194 is an abundant number, since it is smaller than the sum of its proper divisors (276625210086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228551287194 is a wasteful number, since it uses less digits than its factorization.

228551287194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071115 (or 1071112 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 228551287194 in words is "two hundred twenty-eight billion, five hundred fifty-one million, two hundred eighty-seven thousand, one hundred ninety-four".