224263778642 has 6 divisors (see below), whose sum is σ = 336396672549. Its totient is φ = 112131554460.

The previous prime is 224263778623. The next prime is 224263778693. The reversal of 224263778642 is 246877362422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 224032769041 + 231009601 = 473321^2 + 15199^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=334861.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 502292 + ... + 837152.

Almost surely, 2^224263778642 is an apocalyptic number.

224263778642 is a deficient number, since it is larger than the sum of its proper divisors (112132893907).

224263778642 is an frugal number, since it uses more digits than its factorization.

224263778642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669724 (or 334863 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 53.

The spelling of 224263778642 in words is "two hundred twenty-four billion, two hundred sixty-three million, seven hundred seventy-eight thousand, six hundred forty-two".