802119063321 has 45 divisors (see below), whose sum is σ = 1232221940859. Its totient is φ = 502803180288.

The previous prime is 802119063289. The next prime is 802119063331. The reversal of 802119063321 is 123360911208.

The square root of 802119063321 is 895611.

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

802119063321 is a `hidden beast` number, since 8 + 0 + 2 + 1 + 19 + 0 + 633 + 2 + 1 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 123907520025 + 678211543296 = 352005^2 + 823536^2 .

It is not a de Polignac number, because 802119063321 - 2⁵ = 802119063289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (802119063331) 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, 776494221 + ... + 776495253.

Almost surely, 2^802119063321 is an apocalyptic number.

802119063321 is the 895611-st square number.

802119063321 is the 447806-th centered octagonal number.

It is an amenable number.

802119063321 is a deficient number, since it is larger than the sum of its proper divisors (430102877538).

802119063321 is an frugal number, since it uses more digits than its factorization.

802119063321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

Multiplying 802119063321 by its sum of digits (36), we get a square (28876286279556 = 5373666²).

Adding to 802119063321 its reverse (123360911208), we get a palindrome (925479974529).

The spelling of 802119063321 in words is "eight hundred two billion, one hundred nineteen million, sixty-three thousand, three hundred twenty-one".