2752261166209 has 2 divisors, whose sum is σ = 2752261166210. Its totient is φ = 2752261166208.

The previous prime is 2752261166197. The next prime is 2752261166231. The reversal of 2752261166209 is 9026611622572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1623514285584 + 1128746880625 = 1274172^2 + 1062425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2752261166209 - 2⁵ = 2752261166177 is a prime.

It is not a weakly prime, because it can be changed into another prime (2752261166279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1376130583104 + 1376130583105.

It is an arithmetic number, because the mean of its divisors is an integer number (1376130583105).

Almost surely, 2^{2752261166209} is an apocalyptic number.

It is an amenable number.

2752261166209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2752261166209 is an equidigital number, since it uses as much as digits as its factorization.

2752261166209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 2752261166209 in words is "two trillion, seven hundred fifty-two billion, two hundred sixty-one million, one hundred sixty-six thousand, two hundred nine".