181949008067 has 2 divisors, whose sum is σ = 181949008068. Its totient is φ = 181949008066.

The previous prime is 181949008049. The next prime is 181949008103. The reversal of 181949008067 is 760800949181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 181949008067 - 2¹⁴ = 181948991683 is a prime.

It is not a weakly prime, because it can be changed into another prime (181949001067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90974504033 + 90974504034.

It is an arithmetic number, because the mean of its divisors is an integer number (90974504034).

Almost surely, 2^181949008067 is an apocalyptic number.

181949008067 is a deficient number, since it is larger than the sum of its proper divisors (1).

181949008067 is an equidigital number, since it uses as much as digits as its factorization.

181949008067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 181949008067 in words is "one hundred eighty-one billion, nine hundred forty-nine million, eight thousand, sixty-seven".