80735266277 has 2 divisors, whose sum is σ = 80735266278. Its totient is φ = 80735266276.

The previous prime is 80735266273. The next prime is 80735266303. The reversal of 80735266277 is 77266253708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49544527396 + 31190738881 = 222586^2 + 176609^2 .

It is a cyclic number.

It is not a de Polignac number, because 80735266277 - 2² = 80735266273 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80735266273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40367633138 + 40367633139.

It is an arithmetic number, because the mean of its divisors is an integer number (40367633139).

Almost surely, 2^80735266277 is an apocalyptic number.

It is an amenable number.

80735266277 is a deficient number, since it is larger than the sum of its proper divisors (1).

80735266277 is an equidigital number, since it uses as much as digits as its factorization.

80735266277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 80735266277 in words is "eighty billion, seven hundred thirty-five million, two hundred sixty-six thousand, two hundred seventy-seven".