135823947336 has 320 divisors, whose sum is σ = 489611612160. Its totient is φ = 34140528000.

The previous prime is 135823947319. The next prime is 135823947341. The reversal of 135823947336 is 633749328531.

135823947336 is a `hidden beast` number, since 1 + 35 + 8 + 239 + 47 + 336 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1502871 + ... + 1590681.

It is an arithmetic number, because the mean of its divisors is an integer number (1530036288).

Almost surely, 2^135823947336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135823947336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244805806080).

135823947336 is an abundant number, since it is smaller than the sum of its proper divisors (353787664824).

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

135823947336 is a wasteful number, since it uses less digits than its factorization.

135823947336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87878 (or 87865 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The spelling of 135823947336 in words is "one hundred thirty-five billion, eight hundred twenty-three million, nine hundred forty-seven thousand, three hundred thirty-six".