2134081717866 has 576 divisors, whose sum is σ = 6216244819200. Its totient is φ = 515702992896.

The previous prime is 2134081717853. The next prime is 2134081717871. The reversal of 2134081717866 is 6687171804312.

2134081717866 is a `hidden beast` number, since 2 + 1 + 3 + 408 + 1 + 7 + 178 + 66 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1323050476 + ... + 1323052088.

It is an arithmetic number, because the mean of its divisors is an integer number (10792091700).

Almost surely, 2^{2134081717866} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2134081717866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3108122409600).

2134081717866 is an abundant number, since it is smaller than the sum of its proper divisors (4082163101334).

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

2134081717866 is a wasteful number, since it uses less digits than its factorization.

2134081717866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 2134081717866 in words is "two trillion, one hundred thirty-four billion, eighty-one million, seven hundred seventeen thousand, eight hundred sixty-six".