13084720129 has 8 divisors (see below), whose sum is σ = 14092204392. Its totient is φ = 12077374080.

The previous prime is 13084720127. The next prime is 13084720133. The reversal of 13084720129 is 92102748031.

It can be written as a sum of positive squares in 4 ways, for example, as 441966529 + 12642753600 = 21023^2 + 112440^2 .

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 13084720129 - 2¹ = 13084720127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13084720127) 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, 247239 + ... + 295459.

It is an arithmetic number, because the mean of its divisors is an integer number (1761525549).

Almost surely, 2^13084720129 is an apocalyptic number.

It is an amenable number.

13084720129 is a deficient number, since it is larger than the sum of its proper divisors (1007484263).

13084720129 is a wasteful number, since it uses less digits than its factorization.

13084720129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69107.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 13084720129 in words is "thirteen billion, eighty-four million, seven hundred twenty thousand, one hundred twenty-nine".