3656433070489 has 2 divisors, whose sum is σ = 3656433070490. Its totient is φ = 3656433070488.

The previous prime is 3656433070487. The next prime is 3656433070547. The reversal of 3656433070489 is 9840703346563.

3656433070489 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3656433070547) can be obtained adding 3656433070489 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1985514900889 + 1670918169600 = 1409083^2 + 1292640^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656433070489 - 2¹ = 3656433070487 is a prime.

Together with 3656433070487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3656433070487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828216535244 + 1828216535245.

It is an arithmetic number, because the mean of its divisors is an integer number (1828216535245).

Almost surely, 2^{3656433070489} is an apocalyptic number.

It is an amenable number.

3656433070489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656433070489 is an equidigital number, since it uses as much as digits as its factorization.

3656433070489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 3656433070489 in words is "three trillion, six hundred fifty-six billion, four hundred thirty-three million, seventy thousand, four hundred eighty-nine".