80986070181 has 4 divisors (see below), whose sum is σ = 107981426912. Its totient is φ = 53990713452.

The previous prime is 80986070167. The next prime is 80986070213. The reversal of 80986070181 is 18107068908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80986070181 - 2²⁹ = 80449199269 is a prime.

It is a super-2 number, since 2×80986070181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80986070181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80986070131) 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 in 3 ways as a sum of consecutive naturals, for example, 13497678361 + ... + 13497678366.

It is an arithmetic number, because the mean of its divisors is an integer number (26995356728).

Almost surely, 2^80986070181 is an apocalyptic number.

It is an amenable number.

80986070181 is a deficient number, since it is larger than the sum of its proper divisors (26995356731).

80986070181 is a wasteful number, since it uses less digits than its factorization.

80986070181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26995356730.

The product of its (nonzero) digits is 193536, while the sum is 48.

The spelling of 80986070181 in words is "eighty billion, nine hundred eighty-six million, seventy thousand, one hundred eighty-one".