5757208087661 has 2 divisors, whose sum is σ = 5757208087662. Its totient is φ = 5757208087660.

The previous prime is 5757208087649. The next prime is 5757208087781. The reversal of 5757208087661 is 1667808027575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4073559109636 + 1683648978025 = 2018306^2 + 1297555^2 .

It is a cyclic number.

It is not a de Polignac number, because 5757208087661 - 2⁶ = 5757208087597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5757208087594 and 5757208087603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5757208087061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2878604043830 + 2878604043831.

It is an arithmetic number, because the mean of its divisors is an integer number (2878604043831).

Almost surely, 2^{5757208087661} is an apocalyptic number.

It is an amenable number.

5757208087661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5757208087661 is an equidigital number, since it uses as much as digits as its factorization.

5757208087661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 62.

The spelling of 5757208087661 in words is "five trillion, seven hundred fifty-seven billion, two hundred eight million, eighty-seven thousand, six hundred sixty-one".