634620142131102 has 12 divisors (see below), whose sum is σ = 1375010307950760. Its totient is φ = 211540047377028.

The previous prime is 634620142131049. The next prime is 634620142131103. The reversal of 634620142131102 is 201131241026436.

634620142131102 is a `hidden beast` number, since 6 + 3 + 4 + 620 + 1 + 4 + 2 + 13 + 1 + 10 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634620142131103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17628337281402 + ... + 17628337281437.

It is an arithmetic number, because the mean of its divisors is an integer number (114584192329230).

Almost surely, 2^{634620142131102} is an apocalyptic number.

634620142131102 is an abundant number, since it is smaller than the sum of its proper divisors (740390165819658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634620142131102 is a wasteful number, since it uses less digits than its factorization.

634620142131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35256674562847 (or 35256674562844 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 634620142131102 its reverse (201131241026436), we get a palindrome (835751383157538).

The spelling of 634620142131102 in words is "six hundred thirty-four trillion, six hundred twenty billion, one hundred forty-two million, one hundred thirty-one thousand, one hundred two".