3618764161 has 2 divisors, whose sum is σ = 3618764162. Its totient is φ = 3618764160.

The previous prime is 3618764153. The next prime is 3618764189. The reversal of 3618764161 is 1614678163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3463911025 + 154853136 = 58855^2 + 12444^2 .

It is a cyclic number.

It is not a de Polignac number, because 3618764161 - 2³ = 3618764153 is a prime.

It is not a weakly prime, because it can be changed into another prime (3618264161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809382080 + 1809382081.

It is an arithmetic number, because the mean of its divisors is an integer number (1809382081).

Almost surely, 2^3618764161 is an apocalyptic number.

It is an amenable number.

3618764161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618764161 is an equidigital number, since it uses as much as digits as its factorization.

3618764161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 3618764161 is about 60156.1647796799. The cubic root of 3618764161 is about 1535.2770579343.

The spelling of 3618764161 in words is "three billion, six hundred eighteen million, seven hundred sixty-four thousand, one hundred sixty-one".