3499589610661 has 2 divisors, whose sum is σ = 3499589610662. Its totient is φ = 3499589610660.

The previous prime is 3499589610653. The next prime is 3499589610761. The reversal of 3499589610661 is 1660169859943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2028827048161 + 1470762562500 = 1424369^2 + 1212750^2 .

It is a cyclic number.

It is not a de Polignac number, because 3499589610661 - 2³ = 3499589610653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3499589610631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749794805330 + 1749794805331.

It is an arithmetic number, because the mean of its divisors is an integer number (1749794805331).

Almost surely, 2^{3499589610661} is an apocalyptic number.

It is an amenable number.

3499589610661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3499589610661 is an equidigital number, since it uses as much as digits as its factorization.

3499589610661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75582720, while the sum is 67.

The spelling of 3499589610661 in words is "three trillion, four hundred ninety-nine billion, five hundred eighty-nine million, six hundred ten thousand, six hundred sixty-one".