80001800071 has 2 divisors, whose sum is σ = 80001800072. Its totient is φ = 80001800070.

The previous prime is 80001799963. The next prime is 80001800077. The reversal of 80001800071 is 17000810008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80001800071 - 2²⁵ = 79968245639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80001800077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000900035 + 40000900036.

It is an arithmetic number, because the mean of its divisors is an integer number (40000900036).

Almost surely, 2^80001800071 is an apocalyptic number.

80001800071 is a deficient number, since it is larger than the sum of its proper divisors (1).

80001800071 is an equidigital number, since it uses as much as digits as its factorization.

80001800071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 80001800071 in words is "eighty billion, one million, eight hundred thousand, seventy-one".