80120773261509 has 64 divisors (see below), whose sum is σ = 110430019526400. Its totient is φ = 51649061068800.

The previous prime is 80120773261493. The next prime is 80120773261511. The reversal of 80120773261509 is 90516237702108.

It is not a de Polignac number, because 80120773261509 - 2⁴ = 80120773261493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80120773261589) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 7238297227 + ... + 7238308295.

It is an arithmetic number, because the mean of its divisors is an integer number (1725469055100).

Almost surely, 2^{80120773261509} is an apocalyptic number.

It is an amenable number.

80120773261509 is a deficient number, since it is larger than the sum of its proper divisors (30309246264891).

80120773261509 is a wasteful number, since it uses less digits than its factorization.

80120773261509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 80120773261509 in words is "eighty trillion, one hundred twenty billion, seven hundred seventy-three million, two hundred sixty-one thousand, five hundred nine".