1672229026717 has 2 divisors, whose sum is σ = 1672229026718. Its totient is φ = 1672229026716.

The previous prime is 1672229026687. The next prime is 1672229026733. The reversal of 1672229026717 is 7176209222761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092957338916 + 579271687801 = 1045446^2 + 761099^2 .

It is an emirp because it is prime and its reverse (7176209222761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672229026717 - 2¹⁹ = 1672228502429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672229029717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836114513358 + 836114513359.

It is an arithmetic number, because the mean of its divisors is an integer number (836114513359).

Almost surely, 2^{1672229026717} is an apocalyptic number.

It is an amenable number.

1672229026717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672229026717 is an equidigital number, since it uses as much as digits as its factorization.

1672229026717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 1672229026717 in words is "one trillion, six hundred seventy-two billion, two hundred twenty-nine million, twenty-six thousand, seven hundred seventeen".