80340047754121 has 27 divisors (see below), whose sum is σ = 85078769508999. Its totient is φ = 75858874380432.

The previous prime is 80340047754103. The next prime is 80340047754151. The reversal of 80340047754121 is 12145774004308.

The square root of 80340047754121 is 8963261.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25058384047225 + 55281663706896 = 5005835^2 + 7435164^2 .

It is not a de Polignac number, because 80340047754121 - 2¹⁹ = 80340047229833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80340047754151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16286242771 + ... + 16286247703.

Almost surely, 2^{80340047754121} is an apocalyptic number.

80340047754121 is the 8963261-st square number.

80340047754121 is the 4481631-st centered octagonal number.

It is an amenable number.

80340047754121 is a deficient number, since it is larger than the sum of its proper divisors (4738721754878).

80340047754121 is an frugal number, since it uses more digits than its factorization.

80340047754121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070 (or 5035 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 80340047754121 in words is "eighty trillion, three hundred forty billion, forty-seven million, seven hundred fifty-four thousand, one hundred twenty-one".