129992909210 has 8 divisors (see below), whose sum is σ = 233987236596. Its totient is φ = 51997163680.

The previous prime is 129992909209. The next prime is 129992909251. The reversal of 129992909210 is 12909299921.

It can be written as a sum of positive squares in 2 ways, for example, as 124460078521 + 5532830689 = 352789^2 + 74383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 6499645451 + ... + 6499645470.

Almost surely, 2^129992909210 is an apocalyptic number.

129992909210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129992909210 is a deficient number, since it is larger than the sum of its proper divisors (103994327386).

129992909210 is a wasteful number, since it uses less digits than its factorization.

129992909210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12999290928.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 129992909210 in words is "one hundred twenty-nine billion, nine hundred ninety-two million, nine hundred nine thousand, two hundred ten".