136843364736 has 320 divisors, whose sum is σ = 439538114400. Its totient is φ = 42012794880.

The previous prime is 136843364719. The next prime is 136843364761. The reversal of 136843364736 is 637463348631.

136843364736 is a `hidden beast` number, since 136 + 8 + 4 + 3 + 36 + 473 + 6 = 666.

It is a super-2 number, since 2×136843364736² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85047900 + ... + 85049508.

Almost surely, 2^136843364736 is an apocalyptic number.

136843364736 is a gapful number since it is divisible by the number (16) 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 136843364736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219769057200).

136843364736 is an abundant number, since it is smaller than the sum of its proper divisors (302694749664).

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

136843364736 is a wasteful number, since it uses less digits than its factorization.

136843364736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2258 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 54.

The spelling of 136843364736 in words is "one hundred thirty-six billion, eight hundred forty-three million, three hundred sixty-four thousand, seven hundred thirty-six".