2081704211042 has 8 divisors (see below), whose sum is σ = 3122565498156. Its totient is φ = 1040849044992.

The previous prime is 2081704211009. The next prime is 2081704211129. The reversal of 2081704211042 is 2401124071802.

It can be written as a sum of positive squares in 2 ways, for example, as 1816109312161 + 265594898881 = 1347631^2 + 515359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 555983 + ... + 2114834.

Almost surely, 2^{2081704211042} is an apocalyptic number.

2081704211042 is a deficient number, since it is larger than the sum of its proper divisors (1040861287114).

2081704211042 is a wasteful number, since it uses less digits than its factorization.

2081704211042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060532.

The product of its (nonzero) digits is 7168, while the sum is 32.

Adding to 2081704211042 its reverse (2401124071802), we get a palindrome (4482828282844).

The spelling of 2081704211042 in words is "two trillion, eighty-one billion, seven hundred four million, two hundred eleven thousand, forty-two".