135889346905 has 8 divisors (see below), whose sum is σ = 175610848392. Its totient is φ = 100349056128.

The previous prime is 135889346893. The next prime is 135889346927. The reversal of 135889346905 is 509643988531.

It can be written as a sum of positive squares in 4 ways, for example, as 2276434944 + 133612911961 = 47712^2 + 365531^2 .

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 135889346905 - 2²⁷ = 135755129177 is a prime.

It is a super-4 number, since 4×135889346905⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045302604 + ... + 1045302733.

It is an arithmetic number, because the mean of its divisors is an integer number (21951356049).

Almost surely, 2^135889346905 is an apocalyptic number.

It is an amenable number.

135889346905 is a deficient number, since it is larger than the sum of its proper divisors (39721501487).

135889346905 is a wasteful number, since it uses less digits than its factorization.

135889346905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090605355.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 135889346905 in words is "one hundred thirty-five billion, eight hundred eighty-nine million, three hundred forty-six thousand, nine hundred five".