136436044212 has 72 divisors (see below), whose sum is σ = 371609497896. Its totient is φ = 41957685504.

The previous prime is 136436044181. The next prime is 136436044259. The reversal of 136436044212 is 212440634631.

136436044212 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 3 + 604 + 42 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47473437456 + 88962606756 = 217884^2 + 298266^2 .

It is a super-2 number, since 2×136436044212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 800778 + ... + 956094.

Almost surely, 2^136436044212 is an apocalyptic number.

136436044212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136436044212 is an abundant number, since it is smaller than the sum of its proper divisors (235173453684).

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

136436044212 is a wasteful number, since it uses less digits than its factorization.

136436044212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157217 (or 157212 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 136436044212 its reverse (212440634631), we get a palindrome (348876678843).

The spelling of 136436044212 in words is "one hundred thirty-six billion, four hundred thirty-six million, forty-four thousand, two hundred twelve".