3816673561 has 2 divisors, whose sum is σ = 3816673562. Its totient is φ = 3816673560.

The previous prime is 3816673501. The next prime is 3816673571. The reversal of 3816673561 is 1653766183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2865567961 + 951105600 = 53531^2 + 30840^2 .

It is a cyclic number.

It is not a de Polignac number, because 3816673561 - 2²⁵ = 3783119129 is a prime.

It is not a weakly prime, because it can be changed into another prime (3816673501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1908336780 + 1908336781.

It is an arithmetic number, because the mean of its divisors is an integer number (1908336781).

Almost surely, 2^3816673561 is an apocalyptic number.

It is an amenable number.

3816673561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3816673561 is an equidigital number, since it uses as much as digits as its factorization.

3816673561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 3816673561 is about 61779.2324410072. The cubic root of 3816673561 is about 1562.7697836113.

The spelling of 3816673561 in words is "three billion, eight hundred sixteen million, six hundred seventy-three thousand, five hundred sixty-one".