4323251605261 has 2 divisors, whose sum is σ = 4323251605262. Its totient is φ = 4323251605260.

The previous prime is 4323251605247. The next prime is 4323251605279. The reversal of 4323251605261 is 1625061523234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2409539048361 + 1913712556900 = 1552269^2 + 1383370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4323251605261 - 2²⁵ = 4323218050829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4323251605291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2161625802630 + 2161625802631.

It is an arithmetic number, because the mean of its divisors is an integer number (2161625802631).

Almost surely, 2^{4323251605261} is an apocalyptic number.

It is an amenable number.

4323251605261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4323251605261 is an equidigital number, since it uses as much as digits as its factorization.

4323251605261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 4323251605261 in words is "four trillion, three hundred twenty-three billion, two hundred fifty-one million, six hundred five thousand, two hundred sixty-one".