3646662386407 has 2 divisors, whose sum is σ = 3646662386408. Its totient is φ = 3646662386406.

The previous prime is 3646662386401. The next prime is 3646662386429. The reversal of 3646662386407 is 7046832666463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3646662386407 - 2³¹ = 3644514902759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3646662386401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823331193203 + 1823331193204.

It is an arithmetic number, because the mean of its divisors is an integer number (1823331193204).

Almost surely, 2^{3646662386407} is an apocalyptic number.

3646662386407 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646662386407 is an equidigital number, since it uses as much as digits as its factorization.

3646662386407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125411328, while the sum is 61.

The spelling of 3646662386407 in words is "three trillion, six hundred forty-six billion, six hundred sixty-two million, three hundred eighty-six thousand, four hundred seven".