84216610619 has 2 divisors, whose sum is σ = 84216610620. Its totient is φ = 84216610618.

The previous prime is 84216610601. The next prime is 84216610661. The reversal of 84216610619 is 91601661248.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84216610619 is a prime.

It is a super-2 number, since 2×84216610619² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84216610619.

It is not a weakly prime, because it can be changed into another prime (84216610669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42108305309 + 42108305310.

It is an arithmetic number, because the mean of its divisors is an integer number (42108305310).

Almost surely, 2^84216610619 is an apocalyptic number.

84216610619 is a deficient number, since it is larger than the sum of its proper divisors (1).

84216610619 is an equidigital number, since it uses as much as digits as its factorization.

84216610619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 84216610619 in words is "eighty-four billion, two hundred sixteen million, six hundred ten thousand, six hundred nineteen".