3667121617 has 2 divisors, whose sum is σ = 3667121618. Its totient is φ = 3667121616.

The previous prime is 3667121609. The next prime is 3667121621. The reversal of 3667121617 is 7161217663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3658919121 + 8202496 = 60489^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 3667121617 - 2³ = 3667121609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3667121617.

It is not a weakly prime, because it can be changed into another prime (3667121417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833560808 + 1833560809.

It is an arithmetic number, because the mean of its divisors is an integer number (1833560809).

Almost surely, 2^3667121617 is an apocalyptic number.

It is an amenable number.

3667121617 is a deficient number, since it is larger than the sum of its proper divisors (1).

3667121617 is an equidigital number, since it uses as much as digits as its factorization.

3667121617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 3667121617 is about 60556.7635941684. The cubic root of 3667121617 is about 1542.0854437512.

The spelling of 3667121617 in words is "three billion, six hundred sixty-seven million, one hundred twenty-one thousand, six hundred seventeen".