80378030585 has 32 divisors (see below), whose sum is σ = 100270848672. Its totient is φ = 61802956800.

The previous prime is 80378030573. The next prime is 80378030591. The reversal of 80378030585 is 58503087308.

It can be written as a sum of positive squares in 16 ways, for example, as 28166237584 + 52211793001 = 167828^2 + 228499^2 .

It is not a de Polignac number, because 80378030585 - 2¹² = 80378026489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8534339 + ... + 8543751.

It is an arithmetic number, because the mean of its divisors is an integer number (3133464021).

Almost surely, 2^80378030585 is an apocalyptic number.

It is an amenable number.

80378030585 is a deficient number, since it is larger than the sum of its proper divisors (19892818087).

80378030585 is a wasteful number, since it uses less digits than its factorization.

80378030585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 80378030585 in words is "eighty billion, three hundred seventy-eight million, thirty thousand, five hundred eighty-five".