80118617863 has 2 divisors, whose sum is σ = 80118617864. Its totient is φ = 80118617862.

The previous prime is 80118617851. The next prime is 80118617867. The reversal of 80118617863 is 36871681108.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80118617863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80118617867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40059308931 + 40059308932.

It is an arithmetic number, because the mean of its divisors is an integer number (40059308932).

Almost surely, 2^80118617863 is an apocalyptic number.

80118617863 is a deficient number, since it is larger than the sum of its proper divisors (1).

80118617863 is an equidigital number, since it uses as much as digits as its factorization.

80118617863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 80118617863 in words is "eighty billion, one hundred eighteen million, six hundred seventeen thousand, eight hundred sixty-three".