2084734587321 has 45 divisors (see below), whose sum is σ = 3308549820829. Its totient is φ = 1307930150016.

The previous prime is 2084734587319. The next prime is 2084734587347. The reversal of 2084734587321 is 1237854374802.

It is a happy number.

The square root of 2084734587321 is 1443861.

It is a perfect power (a square), and thus also a powerful number.

2084734587321 is a `hidden beast` number, since 2 + 0 + 8 + 4 + 7 + 34 + 587 + 3 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 266605962921 + 1818128624400 = 516339^2 + 1348380^2 .

It is not a de Polignac number, because 2084734587321 - 2¹ = 2084734587319 is a prime.

It is a super-2 number, since 2×2084734587321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2084734587121) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 220906015 + ... + 220915451.

Almost surely, 2^{2084734587321} is an apocalyptic number.

2084734587321 is the 1443861-st square number.

2084734587321 is the 721931-st centered octagonal number.

It is an amenable number.

2084734587321 is a deficient number, since it is larger than the sum of its proper divisors (1223815233508).

2084734587321 is an frugal number, since it uses more digits than its factorization.

2084734587321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18920 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 2084734587321 in words is "two trillion, eighty-four billion, seven hundred thirty-four million, five hundred eighty-seven thousand, three hundred twenty-one".