129834802340 has 24 divisors (see below), whose sum is σ = 273384074040. Its totient is φ = 51794684928.

The previous prime is 129834802337. The next prime is 129834802397. The reversal of 129834802340 is 43208438921.

It can be written as a sum of positive squares in 4 ways, for example, as 22507800676 + 107327001664 = 150026^2 + 327608^2 .

It is a junction number, because it is equal to n+sod(n) for n = 129834802291 and 129834802300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8694605 + ... + 8709524.

It is an arithmetic number, because the mean of its divisors is an integer number (11391003085).

Almost surely, 2^129834802340 is an apocalyptic number.

129834802340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129834802340 is an abundant number, since it is smaller than the sum of its proper divisors (143549271700).

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

129834802340 is a wasteful number, since it uses less digits than its factorization.

129834802340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17404511 (or 17404509 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 129834802340 in words is "one hundred twenty-nine billion, eight hundred thirty-four million, eight hundred two thousand, three hundred forty".