129585746652 has 24 divisors (see below), whose sum is σ = 302410275216. Its totient is φ = 43189029888.

The previous prime is 129585746639. The next prime is 129585746659. The reversal of 129585746652 is 256647585921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129585746659) 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, 690163 + ... + 857610.

It is an arithmetic number, because the mean of its divisors is an integer number (12600428134).

Almost surely, 2^129585746652 is an apocalyptic number.

129585746652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129585746652 is an abundant number, since it is smaller than the sum of its proper divisors (172824528564).

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

129585746652 is a wasteful number, since it uses less digits than its factorization.

129585746652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554757 (or 1554755 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 60.

The spelling of 129585746652 in words is "one hundred twenty-nine billion, five hundred eighty-five million, seven hundred forty-six thousand, six hundred fifty-two".