129412263752 has 36 divisors (see below), whose sum is σ = 244282437945. Its totient is φ = 64273187328.

The previous prime is 129412263719. The next prime is 129412263769. The reversal of 129412263752 is 257362214921.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 120155129956 + 9257133796 = 346634^2 + 96214^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=254374.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 196376399 + ... + 196377057.

Almost surely, 2^129412263752 is an apocalyptic number.

It is an amenable number.

129412263752 is a deficient number, since it is larger than the sum of its proper divisors (114870174193).

129412263752 is an frugal number, since it uses more digits than its factorization.

129412263752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 854 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The spelling of 129412263752 in words is "one hundred twenty-nine billion, four hundred twelve million, two hundred sixty-three thousand, seven hundred fifty-two".