1921714840333 has 4 divisors (see below), whose sum is σ = 1987980869340. Its totient is φ = 1855448811328.

The previous prime is 1921714840277. The next prime is 1921714840387. The reversal of 1921714840333 is 3330484171291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1017005690089 + 904709150244 = 1008467^2 + 951162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1921714840333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1921714840733) by changing a digit.

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, 33133014460 + ... + 33133014517.

It is an arithmetic number, because the mean of its divisors is an integer number (496995217335).

Almost surely, 2^{1921714840333} is an apocalyptic number.

It is an amenable number.

1921714840333 is a deficient number, since it is larger than the sum of its proper divisors (66266029007).

1921714840333 is an equidigital number, since it uses as much as digits as its factorization.

1921714840333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66266029006.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 1921714840333 in words is "one trillion, nine hundred twenty-one billion, seven hundred fourteen million, eight hundred forty thousand, three hundred thirty-three".