602189968081 has 9 divisors (see below), whose sum is σ = 652086451569. Its totient is φ = 555858350736.

The previous prime is 602189968067. The next prime is 602189968123. The reversal of 602189968081 is 180869981206.

The square root of 602189968081 is 776009.

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

It can be written as a sum of positive squares in 4 ways, for example, as 461324865681 + 140865102400 = 679209^2 + 375320^2 .

It is not a de Polignac number, because 602189968081 - 2¹¹ = 602189966033 is a prime.

It is a super-2 number, since 2×602189968081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (602189968021) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10058271 + ... + 10117963.

Almost surely, 2^602189968081 is an apocalyptic number.

602189968081 is the 776009-th square number.

602189968081 is the 388005-th centered octagonal number.

It is an amenable number.

602189968081 is a deficient number, since it is larger than the sum of its proper divisors (49896483488).

602189968081 is an frugal number, since it uses more digits than its factorization.

602189968081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119412 (or 59706 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 58.

The spelling of 602189968081 in words is "six hundred two billion, one hundred eighty-nine million, nine hundred sixty-eight thousand, eighty-one".