129418459320 has 32 divisors (see below), whose sum is σ = 388255378320. Its totient is φ = 34511589120.

The previous prime is 129418459243. The next prime is 129418459361. The reversal of 129418459320 is 23954814921.

It is a happy number.

It is a super-2 number, since 2×129418459320² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129418459320.

It is a congruent number.

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, 539243461 + ... + 539243700.

Almost surely, 2^129418459320 is an apocalyptic number.

129418459320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129418459320 is an abundant number, since it is smaller than the sum of its proper divisors (258836919000).

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

129418459320 is a wasteful number, since it uses less digits than its factorization.

129418459320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078487175 (or 1078487171 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 129418459320 in words is "one hundred twenty-nine billion, four hundred eighteen million, four hundred fifty-nine thousand, three hundred twenty".