5709820261 has 2 divisors, whose sum is σ = 5709820262. Its totient is φ = 5709820260.

The previous prime is 5709820133. The next prime is 5709820307. The reversal of 5709820261 is 1620289075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5090109025 + 619711236 = 71345^2 + 24894^2 .

It is a cyclic number.

It is not a de Polignac number, because 5709820261 - 2⁷ = 5709820133 is a prime.

It is a super-2 number, since 2×5709820261² = 65204094825852216242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5709820561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2854910130 + 2854910131.

It is an arithmetic number, because the mean of its divisors is an integer number (2854910131).

Almost surely, 2^5709820261 is an apocalyptic number.

It is an amenable number.

5709820261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5709820261 is an equidigital number, since it uses as much as digits as its factorization.

5709820261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 5709820261 is about 75563.3526320795. The cubic root of 5709820261 is about 1787.3412523112.

The spelling of 5709820261 in words is "five billion, seven hundred nine million, eight hundred twenty thousand, two hundred sixty-one".