80212177705447 has 16 divisors (see below), whose sum is σ = 81073485792000. Its totient is φ = 79352487446400.

The previous prime is 80212177705367. The next prime is 80212177705459. The reversal of 80212177705447 is 74450777121208.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80212177705447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80212177708447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559877679 + ... + 560020927.

It is an arithmetic number, because the mean of its divisors is an integer number (5067092862000).

Almost surely, 2^{80212177705447} is an apocalyptic number.

80212177705447 is a deficient number, since it is larger than the sum of its proper divisors (861308086553).

80212177705447 is a wasteful number, since it uses less digits than its factorization.

80212177705447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148854.

The product of its (nonzero) digits is 6146560, while the sum is 55.

The spelling of 80212177705447 in words is "eighty trillion, two hundred twelve billion, one hundred seventy-seven million, seven hundred five thousand, four hundred forty-seven".