84018579419 has 2 divisors, whose sum is σ = 84018579420. Its totient is φ = 84018579418.

The previous prime is 84018579319. The next prime is 84018579457. The reversal of 84018579419 is 91497581048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84018579419 - 2¹⁶ = 84018513883 is a prime.

It is a super-2 number, since 2×84018579419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84018579319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42009289709 + 42009289710.

It is an arithmetic number, because the mean of its divisors is an integer number (42009289710).

Almost surely, 2^84018579419 is an apocalyptic number.

84018579419 is a deficient number, since it is larger than the sum of its proper divisors (1).

84018579419 is an equidigital number, since it uses as much as digits as its factorization.

84018579419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 84018579419 in words is "eighty-four billion, eighteen million, five hundred seventy-nine thousand, four hundred nineteen".