129670951685 has 8 divisors (see below), whose sum is σ = 169751064096. Its totient is φ = 94306146640.

The previous prime is 129670951681. The next prime is 129670951717. The reversal of 129670951685 is 586159076921.

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

It is not a de Polignac number, because 129670951685 - 2² = 129670951681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129670951681) 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, 1178826779 + ... + 1178826888.

It is an arithmetic number, because the mean of its divisors is an integer number (21218883012).

Almost surely, 2^129670951685 is an apocalyptic number.

It is an amenable number.

129670951685 is a deficient number, since it is larger than the sum of its proper divisors (40080112411).

129670951685 is a wasteful number, since it uses less digits than its factorization.

129670951685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357653683.

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 129670951685 in words is "one hundred twenty-nine billion, six hundred seventy million, nine hundred fifty-one thousand, six hundred eighty-five".