129712485552 has 40 divisors (see below), whose sum is σ = 360866788464. Its totient is φ = 39911533824.

The previous prime is 129712485493. The next prime is 129712485571. The reversal of 129712485552 is 255584217921.

It is a junction number, because it is equal to n+sod(n) for n = 129712485495 and 129712485504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103935663 + ... + 103936910.

Almost surely, 2^129712485552 is an apocalyptic number.

129712485552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129712485552 is an abundant number, since it is smaller than the sum of its proper divisors (231154302912).

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

129712485552 is a wasteful number, since it uses less digits than its factorization.

129712485552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207872597 (or 207872591 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The spelling of 129712485552 in words is "one hundred twenty-nine billion, seven hundred twelve million, four hundred eighty-five thousand, five hundred fifty-two".