1672984218929 has 2 divisors, whose sum is σ = 1672984218930. Its totient is φ = 1672984218928.

The previous prime is 1672984218883. The next prime is 1672984219007. The reversal of 1672984218929 is 9298124892761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1670052213025 + 2932005904 = 1292305^2 + 54148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672984218929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672984418929) 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, 836492109464 + 836492109465.

It is an arithmetic number, because the mean of its divisors is an integer number (836492109465).

Almost surely, 2^{1672984218929} is an apocalyptic number.

It is an amenable number.

1672984218929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672984218929 is an equidigital number, since it uses as much as digits as its factorization.

1672984218929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 68.

The spelling of 1672984218929 in words is "one trillion, six hundred seventy-two billion, nine hundred eighty-four million, two hundred eighteen thousand, nine hundred twenty-nine".