5127570573661 has 2 divisors, whose sum is σ = 5127570573662. Its totient is φ = 5127570573660.

The previous prime is 5127570573659. The next prime is 5127570573689. The reversal of 5127570573661 is 1663750757215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4767318529561 + 360252044100 = 2183419^2 + 600210^2 .

It is a cyclic number.

It is not a de Polignac number, because 5127570573661 - 2¹ = 5127570573659 is a prime.

Together with 5127570573659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5127570573611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563785286830 + 2563785286831.

It is an arithmetic number, because the mean of its divisors is an integer number (2563785286831).

Almost surely, 2^{5127570573661} is an apocalyptic number.

It is an amenable number.

5127570573661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5127570573661 is an equidigital number, since it uses as much as digits as its factorization.

5127570573661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9261000, while the sum is 55.

The spelling of 5127570573661 in words is "five trillion, one hundred twenty-seven billion, five hundred seventy million, five hundred seventy-three thousand, six hundred sixty-one".