3894911328636 has 18 divisors (see below), whose sum is σ = 9845470303032. Its totient is φ = 1298303776200.

The previous prime is 3894911328617. The next prime is 3894911328641. The reversal of 3894911328636 is 6368231194983.

3894911328636 is a `hidden beast` number, since 3 + 8 + 9 + 491 + 1 + 32 + 86 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54095990640 + ... + 54095990711.

Almost surely, 2^{3894911328636} is an apocalyptic number.

3894911328636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3894911328636 is an abundant number, since it is smaller than the sum of its proper divisors (5950558974396).

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

3894911328636 is a wasteful number, since it uses less digits than its factorization.

3894911328636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108191981361 (or 108191981356 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 3894911328636 in words is "three trillion, eight hundred ninety-four billion, nine hundred eleven million, three hundred twenty-eight thousand, six hundred thirty-six".