634824542839 has 16 divisors (see below), whose sum is σ = 685116198432. Its totient is φ = 585980448768.

The previous prime is 634824542837. The next prime is 634824542843. The reversal of 634824542839 is 938245428436.

It is a cyclic number.

It is not a de Polignac number, because 634824542839 - 2¹ = 634824542837 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 (634824542831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200432 + ... + 2472154.

It is an arithmetic number, because the mean of its divisors is an integer number (42819762402).

Almost surely, 2^634824542839 is an apocalyptic number.

634824542839 is a deficient number, since it is larger than the sum of its proper divisors (50291655593).

634824542839 is a wasteful number, since it uses less digits than its factorization.

634824542839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274386.

The product of its digits is 39813120, while the sum is 58.

The spelling of 634824542839 in words is "six hundred thirty-four billion, eight hundred twenty-four million, five hundred forty-two thousand, eight hundred thirty-nine".