2641565357 has 2 divisors, whose sum is σ = 2641565358. Its totient is φ = 2641565356.

The previous prime is 2641565323. The next prime is 2641565453. The reversal of 2641565357 is 7535651462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2585824201 + 55741156 = 50851^2 + 7466^2 .

It is a cyclic number.

It is not a de Polignac number, because 2641565357 - 2¹⁰ = 2641564333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641565057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320782678 + 1320782679.

It is an arithmetic number, because the mean of its divisors is an integer number (1320782679).

Almost surely, 2^2641565357 is an apocalyptic number.

It is an amenable number.

2641565357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641565357 is an equidigital number, since it uses as much as digits as its factorization.

2641565357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 44.

The square root of 2641565357 is about 51396.1609169401. The cubic root of 2641565357 is about 1382.3577556509.

The spelling of 2641565357 in words is "two billion, six hundred forty-one million, five hundred sixty-five thousand, three hundred fifty-seven".