4284511661 has 2 divisors, whose sum is σ = 4284511662. Its totient is φ = 4284511660.

The previous prime is 4284511639. The next prime is 4284511669. The reversal of 4284511661 is 1661154824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4071205636 + 213306025 = 63806^2 + 14605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4284511661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4284511669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2142255830 + 2142255831.

It is an arithmetic number, because the mean of its divisors is an integer number (2142255831).

Almost surely, 2^4284511661 is an apocalyptic number.

It is an amenable number.

4284511661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4284511661 is an equidigital number, since it uses as much as digits as its factorization.

4284511661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 4284511661 is about 65456.1812283607. The cubic root of 4284511661 is about 1624.1785716354.

The spelling of 4284511661 in words is "four billion, two hundred eighty-four million, five hundred eleven thousand, six hundred sixty-one".