135944908807 has 4 divisors (see below), whose sum is σ = 141855557040. Its totient is φ = 130034260576.

The previous prime is 135944908793. The next prime is 135944908817. The reversal of 135944908807 is 708809449531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708809449531 = 28463 ⋅24902837.

It is a cyclic number.

It is not a de Polignac number, because 135944908807 - 2²³ = 135936520199 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 (135944908817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955324082 + ... + 2955324127.

It is an arithmetic number, because the mean of its divisors is an integer number (35463889260).

Almost surely, 2^135944908807 is an apocalyptic number.

135944908807 is a deficient number, since it is larger than the sum of its proper divisors (5910648233).

135944908807 is an equidigital number, since it uses as much as digits as its factorization.

135944908807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910648232.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 135944908807 in words is "one hundred thirty-five billion, nine hundred forty-four million, nine hundred eight thousand, eight hundred seven".