80413766449 has 2 divisors, whose sum is σ = 80413766450. Its totient is φ = 80413766448.

The previous prime is 80413766393. The next prime is 80413766453. The reversal of 80413766449 is 94466731408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78840216225 + 1573550224 = 280785^2 + 39668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80413766449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80413766396 and 80413766405.

It is not a weakly prime, because it can be changed into another prime (80413766549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40206883224 + 40206883225.

It is an arithmetic number, because the mean of its divisors is an integer number (40206883225).

Almost surely, 2^80413766449 is an apocalyptic number.

It is an amenable number.

80413766449 is a deficient number, since it is larger than the sum of its proper divisors (1).

80413766449 is an equidigital number, since it uses as much as digits as its factorization.

80413766449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 80413766449 in words is "eighty billion, four hundred thirteen million, seven hundred sixty-six thousand, four hundred forty-nine".