352789669521 has 27 divisors (see below), whose sum is σ = 523827772923. Its totient is φ = 228793777200.

The previous prime is 352789669513. The next prime is 352789669559. The reversal of 352789669521 is 125966987253.

The square root of 352789669521 is 593961.

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

352789669521 is a `hidden beast` number, since 3 + 5 + 27 + 89 + 6 + 6 + 9 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 315681041025 + 37108628496 = 561855^2 + 192636^2 .

It is not a de Polignac number, because 352789669521 - 2³ = 352789669513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (352789669511) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65926996 + ... + 65932346.

Almost surely, 2^352789669521 is an apocalyptic number.

352789669521 is the 593961-st square number.

352789669521 is the 296981-st centered octagonal number.

It is an amenable number.

352789669521 is a deficient number, since it is larger than the sum of its proper divisors (171038103402).

352789669521 is an frugal number, since it uses more digits than its factorization.

352789669521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782 (or 5391 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The spelling of 352789669521 in words is "three hundred fifty-two billion, seven hundred eighty-nine million, six hundred sixty-nine thousand, five hundred twenty-one".