672602521109 has 2 divisors, whose sum is σ = 672602521110. Its totient is φ = 672602521108.

The previous prime is 672602521103. The next prime is 672602521117. The reversal of 672602521109 is 901125206276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655699921009 + 16902600100 = 809753^2 + 130010^2 .

It is a cyclic number.

It is not a de Polignac number, because 672602521109 - 2¹⁶ = 672602455573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672602521103) 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, 336301260554 + 336301260555.

It is an arithmetic number, because the mean of its divisors is an integer number (336301260555).

Almost surely, 2^672602521109 is an apocalyptic number.

It is an amenable number.

672602521109 is a deficient number, since it is larger than the sum of its proper divisors (1).

672602521109 is an equidigital number, since it uses as much as digits as its factorization.

672602521109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 672602521109 in words is "six hundred seventy-two billion, six hundred two million, five hundred twenty-one thousand, one hundred nine".