224638608877 has 4 divisors (see below), whose sum is σ = 224732641660. Its totient is φ = 224544576096.

The previous prime is 224638608869. The next prime is 224638608881. The reversal of 224638608877 is 778806836422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778806836422 = 2 ⋅389403418211.

It can be written as a sum of positive squares in 2 ways, for example, as 111191570116 + 113447038761 = 333454^2 + 336819^2 .

It is a cyclic number.

It is not a de Polignac number, because 224638608877 - 2³ = 224638608869 is a prime.

It is a super-2 number, since 2×224638608877² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224638608827) 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, 47012808 + ... + 47017585.

It is an arithmetic number, because the mean of its divisors is an integer number (56183160415).

Almost surely, 2^224638608877 is an apocalyptic number.

It is an amenable number.

224638608877 is a deficient number, since it is larger than the sum of its proper divisors (94032783).

224638608877 is an equidigital number, since it uses as much as digits as its factorization.

224638608877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94032782.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 224638608877 in words is "two hundred twenty-four billion, six hundred thirty-eight million, six hundred eight thousand, eight hundred seventy-seven".