80072887991 has 2 divisors, whose sum is σ = 80072887992. Its totient is φ = 80072887990.

The previous prime is 80072887931. The next prime is 80072888003. The reversal of 80072887991 is 19978827008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80072887991 - 2¹⁰ = 80072886967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80072887991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80072887901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036443995 + 40036443996.

It is an arithmetic number, because the mean of its divisors is an integer number (40036443996).

Almost surely, 2^80072887991 is an apocalyptic number.

80072887991 is a deficient number, since it is larger than the sum of its proper divisors (1).

80072887991 is an equidigital number, since it uses as much as digits as its factorization.

80072887991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 59.

The spelling of 80072887991 in words is "eighty billion, seventy-two million, eight hundred eighty-seven thousand, nine hundred ninety-one".