3815409361 has 9 divisors (see below), whose sum is σ = 4028028393. Its totient is φ = 3613486500.

The previous prime is 3815409347. The next prime is 3815409397. The reversal of 3815409361 is 1639045183.

The square root of 3815409361 is 61769.

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

3815409361 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3815409361 - 2⁵ = 3815409329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3815401361) 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, 1171986 + ... + 1175236.

Almost surely, 2^3815409361 is an apocalyptic number.

3815409361 is the 61769-th square number.

3815409361 is the 30885-th centered octagonal number.

It is an amenable number.

3815409361 is a deficient number, since it is larger than the sum of its proper divisors (212619032).

3815409361 is an frugal number, since it uses more digits than its factorization.

3815409361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6540 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The cubic root of 3815409361 is about 1562.5972187061.

The spelling of 3815409361 in words is "three billion, eight hundred fifteen million, four hundred nine thousand, three hundred sixty-one".