634115226213 has 32 divisors (see below), whose sum is σ = 1073672152320. Its totient is φ = 362338764480.

The previous prime is 634115226193. The next prime is 634115226257. The reversal of 634115226213 is 312622511436.

634115226213 is a `hidden beast` number, since 6 + 3 + 4 + 1 + 1 + 5 + 22 + 621 + 3 = 666.

634115226213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634115226213 - 2⁸ = 634115225957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634115226263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8820931 + ... + 8892527.

It is an arithmetic number, because the mean of its divisors is an integer number (33552254760).

Almost surely, 2^634115226213 is an apocalyptic number.

634115226213 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

634115226213 is a deficient number, since it is larger than the sum of its proper divisors (439556926107).

634115226213 is a wasteful number, since it uses less digits than its factorization.

634115226213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118474 (or 118468 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 634115226213 its reverse (312622511436), we get a palindrome (946737737649).

The spelling of 634115226213 in words is "six hundred thirty-four billion, one hundred fifteen million, two hundred twenty-six thousand, two hundred thirteen".