80917189559 has 2 divisors, whose sum is σ = 80917189560. Its totient is φ = 80917189558.

The previous prime is 80917189517. The next prime is 80917189567. The reversal of 80917189559 is 95598171908.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80917189559 is a prime.

It is a super-2 number, since 2×80917189559² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80917189589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40458594779 + 40458594780.

It is an arithmetic number, because the mean of its divisors is an integer number (40458594780).

Almost surely, 2^80917189559 is an apocalyptic number.

80917189559 is a deficient number, since it is larger than the sum of its proper divisors (1).

80917189559 is an equidigital number, since it uses as much as digits as its factorization.

80917189559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 62.

The spelling of 80917189559 in words is "eighty billion, nine hundred seventeen million, one hundred eighty-nine thousand, five hundred fifty-nine".