80440004419 has 2 divisors, whose sum is σ = 80440004420. Its totient is φ = 80440004418.

The previous prime is 80440004399. The next prime is 80440004459. The reversal of 80440004419 is 91440004408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80440004419 - 2⁹ = 80440003907 is a prime.

It is a super-2 number, since 2×80440004419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80440004459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40220002209 + 40220002210.

It is an arithmetic number, because the mean of its divisors is an integer number (40220002210).

Almost surely, 2^80440004419 is an apocalyptic number.

80440004419 is a deficient number, since it is larger than the sum of its proper divisors (1).

80440004419 is an equidigital number, since it uses as much as digits as its factorization.

80440004419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 80440004419 in words is "eighty billion, four hundred forty million, four thousand, four hundred nineteen".