129749180297 has 8 divisors (see below), whose sum is σ = 141553312992. Its totient is φ = 117946506400.

The previous prime is 129749180287. The next prime is 129749180317. The reversal of 129749180297 is 792081947921.

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

It is a cyclic number.

It is not a de Polignac number, because 129749180297 - 2¹² = 129749176201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129749180287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174404 + ... + 538437.

It is an arithmetic number, because the mean of its divisors is an integer number (17694164124).

Almost surely, 2^129749180297 is an apocalyptic number.

It is an amenable number.

129749180297 is a deficient number, since it is larger than the sum of its proper divisors (11804132695).

129749180297 is a wasteful number, since it uses less digits than its factorization.

129749180297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729399.

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 129749180297 in words is "one hundred twenty-nine billion, seven hundred forty-nine million, one hundred eighty thousand, two hundred ninety-seven".