80017908918841 has 2 divisors, whose sum is σ = 80017908918842. Its totient is φ = 80017908918840.

The previous prime is 80017908918781. The next prime is 80017908918859. The reversal of 80017908918841 is 14881980971008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72590757840441 + 7427151078400 = 8520021^2 + 2725280^2 .

It is a cyclic number.

It is not a de Polignac number, because 80017908918841 - 2³¹ = 80015761435193 is a prime.

It is not a weakly prime, because it can be changed into another prime (80017908318841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40008954459420 + 40008954459421.

It is an arithmetic number, because the mean of its divisors is an integer number (40008954459421).

Almost surely, 2^{80017908918841} is an apocalyptic number.

It is an amenable number.

80017908918841 is a deficient number, since it is larger than the sum of its proper divisors (1).

80017908918841 is an equidigital number, since it uses as much as digits as its factorization.

80017908918841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 64.

The spelling of 80017908918841 in words is "eighty trillion, seventeen billion, nine hundred eight million, nine hundred eighteen thousand, eight hundred forty-one".