634543323345436 has 24 divisors (see below), whose sum is σ = 1157621035777920. Its totient is φ = 303997120728000.

The previous prime is 634543323345431. The next prime is 634543323345457.

634543323345436 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634543323345431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25333080871 + ... + 25333105918.

It is an arithmetic number, because the mean of its divisors is an integer number (48234209824080).

Almost surely, 2^{634543323345436} is an apocalyptic number.

It is an amenable number.

634543323345436 is a deficient number, since it is larger than the sum of its proper divisors (523077712432484).

634543323345436 is a wasteful number, since it uses less digits than its factorization.

634543323345436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50666186925 (or 50666186923 counting only the distinct ones).

The product of its digits is 335923200, while the sum is 58.

The spelling of 634543323345436 in words is "six hundred thirty-four trillion, five hundred forty-three billion, three hundred twenty-three million, three hundred forty-five thousand, four hundred thirty-six".