2642264249 has 2 divisors, whose sum is σ = 2642264250. Its totient is φ = 2642264248.

The previous prime is 2642264221. The next prime is 2642264263. The reversal of 2642264249 is 9424622462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1624654249 + 1017610000 = 40307^2 + 31900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2642264249 - 2²⁰ = 2641215673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2642260249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321132124 + 1321132125.

It is an arithmetic number, because the mean of its divisors is an integer number (1321132125).

Almost surely, 2^2642264249 is an apocalyptic number.

It is an amenable number.

2642264249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642264249 is an equidigital number, since it uses as much as digits as its factorization.

2642264249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 41.

The square root of 2642264249 is about 51402.9595354197. The cubic root of 2642264249 is about 1382.4796573083.

The spelling of 2642264249 in words is "two billion, six hundred forty-two million, two hundred sixty-four thousand, two hundred forty-nine".