80188888945 has 16 divisors (see below), whose sum is σ = 105260606208. Its totient is φ = 58160269440.

The previous prime is 80188888921. The next prime is 80188888951. The reversal of 80188888945 is 54988888108.

It is not a de Polignac number, because 80188888945 - 2¹⁵ = 80188856177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1966164 + ... + 2006533.

It is an arithmetic number, because the mean of its divisors is an integer number (6578787888).

Almost surely, 2^80188888945 is an apocalyptic number.

It is an amenable number.

80188888945 is a deficient number, since it is larger than the sum of its proper divisors (25071717263).

80188888945 is a wasteful number, since it uses less digits than its factorization.

80188888945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973080.

The product of its (nonzero) digits is 47185920, while the sum is 67.

The spelling of 80188888945 in words is "eighty billion, one hundred eighty-eight million, eight hundred eighty-eight thousand, nine hundred forty-five".