576607866409 has 9 divisors (see below), whose sum is σ = 579270944343. Its totient is φ = 573956986032.

The previous prime is 576607866403. The next prime is 576607866421. The reversal of 576607866409 is 904668706675.

The square root of 576607866409 is 759347.

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., 117097418025 + 459510448384 = 342195^2 + 677872^2 .

It is not a de Polignac number, because 576607866409 - 2¹⁹ = 576607342121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (576607866403) 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, 176926222 + ... + 176929480.

Almost surely, 2^576607866409 is an apocalyptic number.

576607866409 is the 759347-th square number.

576607866409 is the 379674-th centered octagonal number.

It is an amenable number.

576607866409 is a deficient number, since it is larger than the sum of its proper divisors (2663077934).

576607866409 is an frugal number, since it uses more digits than its factorization.

576607866409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 64.

Multiplying 576607866409 by its sum of digits (64), we get a square (36902903450176 = 6074776²).

The spelling of 576607866409 in words is "five hundred seventy-six billion, six hundred seven million, eight hundred sixty-six thousand, four hundred nine".