3815482561 has 16 divisors (see below), whose sum is σ = 4300656768. Its totient is φ = 3355206400.

The previous prime is 3815482553. The next prime is 3815482571. The reversal of 3815482561 is 1652845183.

3815482561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3815482561 - 2³ = 3815482553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3815482571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4696 + ... + 87481.

It is an arithmetic number, because the mean of its divisors is an integer number (268791048).

Almost surely, 2^3815482561 is an apocalyptic number.

It is an amenable number.

3815482561 is a deficient number, since it is larger than the sum of its proper divisors (485174207).

3815482561 is a wasteful number, since it uses less digits than its factorization.

3815482561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92312.

The product of its digits is 230400, while the sum is 43.

The square root of 3815482561 is about 61769.5925273917. The cubic root of 3815482561 is about 1562.6072116387.

The spelling of 3815482561 in words is "three billion, eight hundred fifteen million, four hundred eighty-two thousand, five hundred sixty-one".