43406677667 has 2 divisors, whose sum is σ = 43406677668. Its totient is φ = 43406677666.

The previous prime is 43406677637. The next prime is 43406677729. The reversal of 43406677667 is 76677660434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43406677667 - 2³² = 39111710371 is a prime.

It is not a weakly prime, because it can be changed into another prime (43406677637) 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, 21703338833 + 21703338834.

It is an arithmetic number, because the mean of its divisors is an integer number (21703338834).

Almost surely, 2^43406677667 is an apocalyptic number.

43406677667 is a deficient number, since it is larger than the sum of its proper divisors (1).

43406677667 is an equidigital number, since it uses as much as digits as its factorization.

43406677667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 43406677667 in words is "forty-three billion, four hundred six million, six hundred seventy-seven thousand, six hundred sixty-seven".