3643261627769 has 2 divisors, whose sum is σ = 3643261627770. Its totient is φ = 3643261627768.

The previous prime is 3643261627651. The next prime is 3643261627771. The reversal of 3643261627769 is 9677261623463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3617223610000 + 26038017769 = 1901900^2 + 161363^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643261627769 - 2⁸ = 3643261627513 is a prime.

It is a super-2 number, since 2×3643261627769² (a number of 26 digits) contains 22 as substring.

Together with 3643261627771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3643261627469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821630813884 + 1821630813885.

It is an arithmetic number, because the mean of its divisors is an integer number (1821630813885).

Almost surely, 2^{3643261627769} is an apocalyptic number.

It is an amenable number.

3643261627769 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643261627769 is an equidigital number, since it uses as much as digits as its factorization.

3643261627769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 62.

The spelling of 3643261627769 in words is "three trillion, six hundred forty-three billion, two hundred sixty-one million, six hundred twenty-seven thousand, seven hundred sixty-nine".