129352238450 has 54 divisors (see below), whose sum is σ = 254019425031. Its totient is φ = 48999379680.

The previous prime is 129352238447. The next prime is 129352238459. The reversal of 129352238450 is 54832253921.

It can be written as a sum of positive squares in 5 ways, for example, as 3396649 + 129348841801 = 1843^2 + 359651^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=254315.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129352238459) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48318512 + ... + 48321188.

Almost surely, 2^129352238450 is an apocalyptic number.

129352238450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129352238450 is a deficient number, since it is larger than the sum of its proper divisors (124667186581).

129352238450 is an frugal number, since it uses more digits than its factorization.

129352238450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 129352238450 in words is "one hundred twenty-nine billion, three hundred fifty-two million, two hundred thirty-eight thousand, four hundred fifty".