674128000009 has 2 divisors, whose sum is σ = 674128000010. Its totient is φ = 674128000008.

The previous prime is 674127999959. The next prime is 674128000069. The reversal of 674128000009 is 900000821476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629885084409 + 44242915600 = 793653^2 + 210340^2 .

It is a cyclic number.

It is not a de Polignac number, because 674128000009 - 2¹⁷ = 674127868937 is a prime.

It is a super-2 number, since 2×674128000009² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674128000069) 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, 337064000004 + 337064000005.

It is an arithmetic number, because the mean of its divisors is an integer number (337064000005).

Almost surely, 2^674128000009 is an apocalyptic number.

It is an amenable number.

674128000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

674128000009 is an equidigital number, since it uses as much as digits as its factorization.

674128000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 674128000009 in words is "six hundred seventy-four billion, one hundred twenty-eight million, nine", and thus it is an aban number.