13067021709 has 64 divisors (see below), whose sum is σ = 22300876800. Its totient is φ = 7407481536.

The previous prime is 13067021663. The next prime is 13067021711. The reversal of 13067021709 is 90712076031.

It is a happy number.

It is not a de Polignac number, because 13067021709 - 2¹⁵ = 13066988941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13067001709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20010427 + ... + 20011079.

It is an arithmetic number, because the mean of its divisors is an integer number (348451200).

Almost surely, 2^13067021709 is an apocalyptic number.

It is an amenable number.

13067021709 is a deficient number, since it is larger than the sum of its proper divisors (9233855091).

13067021709 is a wasteful number, since it uses less digits than its factorization.

13067021709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The spelling of 13067021709 in words is "thirteen billion, sixty-seven million, twenty-one thousand, seven hundred nine".