135968976378 has 40 divisors (see below), whose sum is σ = 304839013248. Its totient is φ = 45298031976.

The previous prime is 135968976349. The next prime is 135968976419. The reversal of 135968976378 is 873679869531.

135968976378 is a `hidden beast` number, since 1 + 359 + 68 + 97 + 63 + 78 = 666.

It is a super-2 number, since 2×135968976378² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65125 + ... + 525527.

Almost surely, 2^135968976378 is an apocalyptic number.

135968976378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135968976378 is an abundant number, since it is smaller than the sum of its proper divisors (168870036870).

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

135968976378 is a wasteful number, since it uses less digits than its factorization.

135968976378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462240 (or 462231 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 135968976378 in words is "one hundred thirty-five billion, nine hundred sixty-eight million, nine hundred seventy-six thousand, three hundred seventy-eight".