1836178064136 has 768 divisors, whose sum is σ = 6085739520000. Its totient is φ = 508358177280.

The previous prime is 1836178064131. The next prime is 1836178064219. The reversal of 1836178064136 is 6314608716381.

1836178064136 is a `hidden beast` number, since 1 + 8 + 3 + 617 + 8 + 0 + 6 + 4 + 13 + 6 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1836178064131) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 3025004745 + ... + 3025005351.

It is an arithmetic number, because the mean of its divisors is an integer number (7924140000).

Almost surely, 2^{1836178064136} 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 1836178064136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3042869760000).

1836178064136 is an abundant number, since it is smaller than the sum of its proper divisors (4249561455864).

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

1836178064136 is a wasteful number, since it uses less digits than its factorization.

1836178064136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 1836178064136 in words is "one trillion, eight hundred thirty-six billion, one hundred seventy-eight million, sixty-four thousand, one hundred thirty-six".