135766430579898 has 64 divisors (see below), whose sum is σ = 303915811605120. Its totient is φ = 44924586218496.

The previous prime is 135766430579783. The next prime is 135766430579921. The reversal of 135766430579898 is 898975034667531.

135766430579898 is a `hidden beast` number, since 1 + 3 + 5 + 7 + 6 + 6 + 4 + 30 + 579 + 8 + 9 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9080365 + ... + 18814512.

It is an arithmetic number, because the mean of its divisors is an integer number (4748684556330).

Almost surely, 2^{135766430579898} is an apocalyptic number.

135766430579898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135766430579898 is an abundant number, since it is smaller than the sum of its proper divisors (168149381025222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135766430579898 is a wasteful number, since it uses less digits than its factorization.

135766430579898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27895548 (or 27895542 counting only the distinct ones).

The product of its (nonzero) digits is 8230118400, while the sum is 81.

The spelling of 135766430579898 in words is "one hundred thirty-five trillion, seven hundred sixty-six billion, four hundred thirty million, five hundred seventy-nine thousand, eight hundred ninety-eight".