634426241362133 has 12 divisors (see below), whose sum is σ = 697346112302700. Its totient is φ = 576749833313280.

The previous prime is 634426241362093. The next prime is 634426241362141. The reversal of 634426241362133 is 331263142624436.

It can be written as a sum of positive squares in 2 ways, for example, as 161181763364644 + 473244477997489 = 12695738^2 + 21754183^2 .

It is a de Polignac number, because none of the positive numbers 2^k-634426241362133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634426241362163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50433941 + ... + 61744917.

It is an arithmetic number, because the mean of its divisors is an integer number (58112176025225).

Almost surely, 2^{634426241362133} is an apocalyptic number.

It is an amenable number.

634426241362133 is a deficient number, since it is larger than the sum of its proper divisors (62919870940567).

634426241362133 is a wasteful number, since it uses less digits than its factorization.

634426241362133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11774548 (or 11774537 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 50.

Adding to 634426241362133 its reverse (331263142624436), we get a palindrome (965689383986569).

The spelling of 634426241362133 in words is "six hundred thirty-four trillion, four hundred twenty-six billion, two hundred forty-one million, three hundred sixty-two thousand, one hundred thirty-three".