3611406641 has 2 divisors, whose sum is σ = 3611406642. Its totient is φ = 3611406640.

The previous prime is 3611406629. The next prime is 3611406691. The reversal of 3611406641 is 1466041163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3249456016 + 361950625 = 57004^2 + 19025^2 .

It is a cyclic number.

It is not a de Polignac number, because 3611406641 - 2¹⁸ = 3611144497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3611406598 and 3611406607.

It is not a weakly prime, because it can be changed into another prime (3611406691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1805703320 + 1805703321.

It is an arithmetic number, because the mean of its divisors is an integer number (1805703321).

Almost surely, 2^3611406641 is an apocalyptic number.

It is an amenable number.

3611406641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3611406641 is an equidigital number, since it uses as much as digits as its factorization.

3611406641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3611406641 is about 60094.9801647359. The cubic root of 3611406641 is about 1534.2358649359.

The spelling of 3611406641 in words is "three billion, six hundred eleven million, four hundred six thousand, six hundred forty-one".