80374035409 has 2 divisors, whose sum is σ = 80374035410. Its totient is φ = 80374035408.

The previous prime is 80374035323. The next prime is 80374035421. The reversal of 80374035409 is 90453047308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71127289809 + 9246745600 = 266697^2 + 96160^2 .

It is a cyclic number.

It is not a de Polignac number, because 80374035409 - 2¹⁵ = 80374002641 is a prime.

It is not a weakly prime, because it can be changed into another prime (80374035449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40187017704 + 40187017705.

It is an arithmetic number, because the mean of its divisors is an integer number (40187017705).

Almost surely, 2^80374035409 is an apocalyptic number.

It is an amenable number.

80374035409 is a deficient number, since it is larger than the sum of its proper divisors (1).

80374035409 is an equidigital number, since it uses as much as digits as its factorization.

80374035409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 80374035409 in words is "eighty billion, three hundred seventy-four million, thirty-five thousand, four hundred nine".