80720940059 has 2 divisors, whose sum is σ = 80720940060. Its totient is φ = 80720940058.

The previous prime is 80720940043. The next prime is 80720940133. The reversal of 80720940059 is 95004902708.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80720940059 - 2⁴ = 80720940043 is a prime.

It is not a weakly prime, because it can be changed into another prime (80720960059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40360470029 + 40360470030.

It is an arithmetic number, because the mean of its divisors is an integer number (40360470030).

Almost surely, 2^80720940059 is an apocalyptic number.

80720940059 is a deficient number, since it is larger than the sum of its proper divisors (1).

80720940059 is an equidigital number, since it uses as much as digits as its factorization.

80720940059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 80720940059 in words is "eighty billion, seven hundred twenty million, nine hundred forty thousand, fifty-nine".