135477822578 has 18 divisors (see below), whose sum is σ = 236401334253. Its totient is φ = 58060362360.

The previous prime is 135477822569. The next prime is 135477822581. The reversal of 135477822578 is 875228774531.

It can be written as a sum of positive squares in 2 ways, for example, as 130258193569 + 5219629009 = 360913^2 + 72247^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=260267.

It is a Curzon number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 3625148 + ... + 3662328.

Almost surely, 2^135477822578 is an apocalyptic number.

135477822578 is a deficient number, since it is larger than the sum of its proper divisors (100923511675).

135477822578 is an frugal number, since it uses more digits than its factorization.

135477822578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74378 (or 37190 counting only the distinct ones).

The product of its digits is 26342400, while the sum is 59.

The spelling of 135477822578 in words is "one hundred thirty-five billion, four hundred seventy-seven million, eight hundred twenty-two thousand, five hundred seventy-eight".