352428633649 has 27 divisors (see below), whose sum is σ = 383029716907. Its totient is φ = 324203211584.

The previous prime is 352428633647. The next prime is 352428633671. The reversal of 352428633649 is 946336824253.

The square root of 352428633649 is 593657.

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

It can be written as a sum of positive squares in only one way, i.e., 274382154225 + 78046479424 = 523815^2 + 279368^2 .

It is not a de Polignac number, because 352428633649 - 2¹ = 352428633647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352428633649.

It is not an unprimeable number, because it can be changed into a prime (352428633647) 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, 474331572 + ... + 474332314.

Almost surely, 2^352428633649 is an apocalyptic number.

352428633649 is the 593657-th square number.

352428633649 is the 296829-th centered octagonal number.

It is an amenable number.

352428633649 is a deficient number, since it is larger than the sum of its proper divisors (30601083258).

352428633649 is an frugal number, since it uses more digits than its factorization.

352428633649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614 (or 807 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 55.

The spelling of 352428633649 in words is "three hundred fifty-two billion, four hundred twenty-eight million, six hundred thirty-three thousand, six hundred forty-nine".