2187868285368 has 48 divisors (see below), whose sum is σ = 5925988242720. Its totient is φ = 729226457856.

The previous prime is 2187868285313. The next prime is 2187868285409. The reversal of 2187868285368 is 8635828687812.

2187868285368 is a `hidden beast` number, since 2 + 1 + 8 + 7 + 8 + 6 + 82 + 8 + 536 + 8 = 666.

It is a super-2 number, since 2×2187868285368² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 2187868285296 and 2187868285305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468496 + ... + 2143647.

It is an arithmetic number, because the mean of its divisors is an integer number (123458088390).

Almost surely, 2^{2187868285368} is an apocalyptic number.

It is an amenable number.

2187868285368 is an abundant number, since it is smaller than the sum of its proper divisors (3738119957352).

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

2187868285368 is a wasteful number, since it uses less digits than its factorization.

2187868285368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623788 (or 2623781 counting only the distinct ones).

The product of its digits is 495452160, while the sum is 72.

The spelling of 2187868285368 in words is "two trillion, one hundred eighty-seven billion, eight hundred sixty-eight million, two hundred eighty-five thousand, three hundred sixty-eight".