1672018518887 has 2 divisors, whose sum is σ = 1672018518888. Its totient is φ = 1672018518886.

The previous prime is 1672018518881. The next prime is 1672018518917. The reversal of 1672018518887 is 7888158102761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1672018518887 - 2²⁰ = 1672017470311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672018518881) 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, 836009259443 + 836009259444.

It is an arithmetic number, because the mean of its divisors is an integer number (836009259444).

Almost surely, 2^{1672018518887} is an apocalyptic number.

1672018518887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672018518887 is an equidigital number, since it uses as much as digits as its factorization.

1672018518887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12042240, while the sum is 62.

The spelling of 1672018518887 in words is "one trillion, six hundred seventy-two billion, eighteen million, five hundred eighteen thousand, eight hundred eighty-seven".