3656212530769 has 2 divisors, whose sum is σ = 3656212530770. Its totient is φ = 3656212530768.

The previous prime is 3656212530757. The next prime is 3656212530781. The reversal of 3656212530769 is 9670352126563.

It is a balanced prime because it is at equal distance from previous prime (3656212530757) and next prime (3656212530781).

It can be written as a sum of positive squares in only one way, i.e., 3628979280144 + 27233250625 = 1904988^2 + 165025^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656212530769 - 2²³ = 3656204142161 is a prime.

It is a super-2 number, since 2×3656212530769² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3656212530799) 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, 1828106265384 + 1828106265385.

It is an arithmetic number, because the mean of its divisors is an integer number (1828106265385).

Almost surely, 2^{3656212530769} is an apocalyptic number.

It is an amenable number.

3656212530769 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656212530769 is an equidigital number, since it uses as much as digits as its factorization.

3656212530769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 55.

The spelling of 3656212530769 in words is "three trillion, six hundred fifty-six billion, two hundred twelve million, five hundred thirty thousand, seven hundred sixty-nine".