80278220075 has 12 divisors (see below), whose sum is σ = 99865082928. Its totient is φ = 64016066400.

The previous prime is 80278220021. The next prime is 80278220081. The reversal of 80278220075 is 57002287208.

It is a happy number.

It is not a de Polignac number, because 80278220075 - 2¹⁰ = 80278219051 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 11 ways as a sum of consecutive naturals, for example, 5154812 + ... + 5170361.

It is an arithmetic number, because the mean of its divisors is an integer number (8322090244).

Almost surely, 2^80278220075 is an apocalyptic number.

80278220075 is a deficient number, since it is larger than the sum of its proper divisors (19586862853).

80278220075 is a wasteful number, since it uses less digits than its factorization.

80278220075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10325494 (or 10325489 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 80278220075 in words is "eighty billion, two hundred seventy-eight million, two hundred twenty thousand, seventy-five".