135868211379 has 8 divisors (see below), whose sum is σ = 201286239120. Its totient is φ = 90578807568.

The previous prime is 135868211363. The next prime is 135868211407. The reversal of 135868211379 is 973112868531.

135868211379 is a `hidden beast` number, since 1 + 3 + 58 + 6 + 8 + 211 + 379 = 666.

It is not a de Polignac number, because 135868211379 - 2⁴ = 135868211363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135868211279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2516077962 + ... + 2516078015.

It is an arithmetic number, because the mean of its divisors is an integer number (25160779890).

Almost surely, 2^135868211379 is an apocalyptic number.

135868211379 is a deficient number, since it is larger than the sum of its proper divisors (65418027741).

135868211379 is an equidigital number, since it uses as much as digits as its factorization.

135868211379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032155986 (or 5032155980 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 135868211379 in words is "one hundred thirty-five billion, eight hundred sixty-eight million, two hundred eleven thousand, three hundred seventy-nine".