80719628543 has 16 divisors (see below), whose sum is σ = 85199506560. Its totient is φ = 76368768000.

The previous prime is 80719628537. The next prime is 80719628573. The reversal of 80719628543 is 34582691708.

It is a Cunningham number, because it is equal to 284112²-1.

It is a cyclic number.

It is not a de Polignac number, because 80719628543 - 2¹⁴ = 80719612159 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 (80719628503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142058 + ... + 426168.

It is an arithmetic number, because the mean of its divisors is an integer number (5324969160).

It is a 2-persistent number, because it is pandigital, and so is 2⋅80719628543 = 161439257086, but 3⋅80719628543 = 242158885629 is not.

Almost surely, 2^80719628543 is an apocalyptic number.

80719628543 is a deficient number, since it is larger than the sum of its proper divisors (4479878017).

80719628543 is a wasteful number, since it uses less digits than its factorization.

80719628543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284338.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 80719628543 in words is "eighty billion, seven hundred nineteen million, six hundred twenty-eight thousand, five hundred forty-three".