1684520492122 has 16 divisors (see below), whose sum is σ = 2721641591592. Its totient is φ = 777330109440.

The previous prime is 1684520492119. The next prime is 1684520492129. The reversal of 1684520492122 is 2212940254861.

It can be written as a sum of positive squares in 4 ways, for example, as 454530807721 + 1229989684401 = 674189^2 + 1109049^2 .

It is not an unprimeable number, because it can be changed into a prime (1684520492129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5723983 + ... + 6011074.

Almost surely, 2^{1684520492122} is an apocalyptic number.

1684520492122 is a deficient number, since it is larger than the sum of its proper divisors (1037121099470).

1684520492122 is a wasteful number, since it uses less digits than its factorization.

1684520492122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11740593.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 1684520492122 in words is "one trillion, six hundred eighty-four billion, five hundred twenty million, four hundred ninety-two thousand, one hundred twenty-two".