80440000063 has 2 divisors, whose sum is σ = 80440000064. Its totient is φ = 80440000062.

The previous prime is 80440000051. The next prime is 80440000093. The reversal of 80440000063 is 36000004408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80440000063 - 2⁵ = 80440000031 is a prime.

It is a super-2 number, since 2×80440000063² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80439999992 and 80440000037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80440000093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40220000031 + 40220000032.

It is an arithmetic number, because the mean of its divisors is an integer number (40220000032).

Almost surely, 2^80440000063 is an apocalyptic number.

80440000063 is a deficient number, since it is larger than the sum of its proper divisors (1).

80440000063 is an equidigital number, since it uses as much as digits as its factorization.

80440000063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 80440000063 in words is "eighty billion, four hundred forty million, sixty-three", and thus it is an aban number.