3531933661 has 2 divisors, whose sum is σ = 3531933662. Its totient is φ = 3531933660.

The previous prime is 3531933641. The next prime is 3531933703. The reversal of 3531933661 is 1663391353.

3531933661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3431733561 + 100200100 = 58581^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3531933661 - 2¹³ = 3531925469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3531933641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765966830 + 1765966831.

It is an arithmetic number, because the mean of its divisors is an integer number (1765966831).

Almost surely, 2^3531933661 is an apocalyptic number.

It is an amenable number.

3531933661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531933661 is an equidigital number, since it uses as much as digits as its factorization.

3531933661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 40.

The square root of 3531933661 is about 59430.0737085190. The cubic root of 3531933661 is about 1522.8981038193.

The spelling of 3531933661 in words is "three billion, five hundred thirty-one million, nine hundred thirty-three thousand, six hundred sixty-one".