129680433751 has 4 divisors (see below), whose sum is σ = 141469564104. Its totient is φ = 117891303400.

The previous prime is 129680433731. The next prime is 129680433809. The reversal of 129680433751 is 157334086921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129680433751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129680433695 and 129680433704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129680433731) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5894565160 + ... + 5894565181.

It is an arithmetic number, because the mean of its divisors is an integer number (35367391026).

It is a 1-persistent number, because it is pandigital, but 2⋅129680433751 = 259360867502 is not.

Almost surely, 2^129680433751 is an apocalyptic number.

129680433751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129680433751 is a deficient number, since it is larger than the sum of its proper divisors (11789130353).

129680433751 is a wasteful number, since it uses less digits than its factorization.

129680433751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789130352.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 129680433751 in words is "one hundred twenty-nine billion, six hundred eighty million, four hundred thirty-three thousand, seven hundred fifty-one".