129797784213 has 8 divisors (see below), whose sum is σ = 182172328800. Its totient is φ = 81977547888.

The previous prime is 129797784199. The next prime is 129797784217. The reversal of 129797784213 is 312487797921.

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

It is a de Polignac number, because none of the positive numbers 2^k-129797784213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129797784217) 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, 1138576998 + ... + 1138577111.

It is an arithmetic number, because the mean of its divisors is an integer number (22771541100).

Almost surely, 2^129797784213 is an apocalyptic number.

It is an amenable number.

129797784213 is a deficient number, since it is larger than the sum of its proper divisors (52374544587).

129797784213 is a wasteful number, since it uses less digits than its factorization.

129797784213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277154131.

The product of its digits is 10668672, while the sum is 60.

The spelling of 129797784213 in words is "one hundred twenty-nine billion, seven hundred ninety-seven million, seven hundred eighty-four thousand, two hundred thirteen".