80311730689 has 16 divisors (see below), whose sum is σ = 82248235776. Its totient is φ = 78396753600.

The previous prime is 80311730677. The next prime is 80311730693. The reversal of 80311730689 is 98603711308.

It is a cyclic number.

It is not a de Polignac number, because 80311730689 - 2⁷ = 80311730561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80311730699) 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, 6727644 + ... + 6739570.

It is an arithmetic number, because the mean of its divisors is an integer number (5140514736).

Almost surely, 2^80311730689 is an apocalyptic number.

It is an amenable number.

80311730689 is a deficient number, since it is larger than the sum of its proper divisors (1936505087).

80311730689 is a wasteful number, since it uses less digits than its factorization.

80311730689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12816.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 80311730689 in words is "eighty billion, three hundred eleven million, seven hundred thirty thousand, six hundred eighty-nine".