135854565912 has 384 divisors, whose sum is σ = 417164267520. Its totient is φ = 39657600000.

The previous prime is 135854565893. The next prime is 135854565919. The reversal of 135854565912 is 219565458531.

135854565912 is a `hidden beast` number, since 1 + 3 + 5 + 8 + 5 + 45 + 6 + 591 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135854565919) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442522863 + ... + 442523169.

It is an arithmetic number, because the mean of its divisors is an integer number (1086365280).

Almost surely, 2^135854565912 is an apocalyptic number.

135854565912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135854565912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208582133760).

135854565912 is an abundant number, since it is smaller than the sum of its proper divisors (281309701608).

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

135854565912 is a wasteful number, since it uses less digits than its factorization.

135854565912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 608 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The spelling of 135854565912 in words is "one hundred thirty-five billion, eight hundred fifty-four million, five hundred sixty-five thousand, nine hundred twelve".