135967641809 has 8 divisors (see below), whose sum is σ = 144919156608. Its totient is φ = 127122062400.

The previous prime is 135967641793. The next prime is 135967641829. The reversal of 135967641809 is 908146769531.

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 135967641809 - 2⁴ = 135967641793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135967641829) 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, 26481197 + ... + 26486330.

It is an arithmetic number, because the mean of its divisors is an integer number (18114894576).

Almost surely, 2^135967641809 is an apocalyptic number.

It is an amenable number.

135967641809 is a deficient number, since it is larger than the sum of its proper divisors (8951514799).

135967641809 is a wasteful number, since it uses less digits than its factorization.

135967641809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52967695.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 135967641809 in words is "one hundred thirty-five billion, nine hundred sixty-seven million, six hundred forty-one thousand, eight hundred nine".