2106787830084 has 48 divisors (see below), whose sum is σ = 6242334313600. Its totient is φ = 601939379808.

The previous prime is 2106787830047. The next prime is 2106787830089. The reversal of 2106787830084 is 4800387876012.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2106787830084.

It is not an unprimeable number, because it can be changed into a prime (2106787830089) 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 15 ways as a sum of consecutive naturals, for example, 1393377439 + ... + 1393378950.

Almost surely, 2^{2106787830084} is an apocalyptic number.

It is an amenable number.

2106787830084 is an abundant number, since it is smaller than the sum of its proper divisors (4135546483516).

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

2106787830084 is a wasteful number, since it uses less digits than its factorization.

2106787830084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786756409 (or 2786756401 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 2106787830084 in words is "two trillion, one hundred six billion, seven hundred eighty-seven million, eight hundred thirty thousand, eighty-four".