129893613847 has 6 divisors (see below), whose sum is σ = 130920491904. Its totient is φ = 128866799880.

The previous prime is 129893613833. The next prime is 129893613869. The reversal of 129893613847 is 748316398921.

It is a de Polignac number, because none of the positive numbers 2^k-129893613847 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 (129893613547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4045597 + ... + 4077577.

It is an arithmetic number, because the mean of its divisors is an integer number (21820081984).

Almost surely, 2^129893613847 is an apocalyptic number.

129893613847 is a deficient number, since it is larger than the sum of its proper divisors (1026878057).

129893613847 is an frugal number, since it uses more digits than its factorization.

129893613847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64089 (or 32108 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 61.

The spelling of 129893613847 in words is "one hundred twenty-nine billion, eight hundred ninety-three million, six hundred thirteen thousand, eight hundred forty-seven".