80814066737 has 2 divisors, whose sum is σ = 80814066738. Its totient is φ = 80814066736.

The previous prime is 80814066721. The next prime is 80814066769. The reversal of 80814066737 is 73766041808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46686677041 + 34127389696 = 216071^2 + 184736^2 .

It is a cyclic number.

It is not a de Polignac number, because 80814066737 - 2⁴ = 80814066721 is a prime.

It is not a weakly prime, because it can be changed into another prime (80814066797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40407033368 + 40407033369.

It is an arithmetic number, because the mean of its divisors is an integer number (40407033369).

Almost surely, 2^80814066737 is an apocalyptic number.

It is an amenable number.

80814066737 is a deficient number, since it is larger than the sum of its proper divisors (1).

80814066737 is an equidigital number, since it uses as much as digits as its factorization.

80814066737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 80814066737 in words is "eighty billion, eight hundred fourteen million, sixty-six thousand, seven hundred thirty-seven".