84613894019 has 2 divisors, whose sum is σ = 84613894020. Its totient is φ = 84613894018.

The previous prime is 84613893929. The next prime is 84613894061. The reversal of 84613894019 is 91049831648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84613894019 - 2¹² = 84613889923 is a prime.

It is a super-2 number, since 2×84613894019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84613894069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42306947009 + 42306947010.

It is an arithmetic number, because the mean of its divisors is an integer number (42306947010).

Almost surely, 2^84613894019 is an apocalyptic number.

84613894019 is a deficient number, since it is larger than the sum of its proper divisors (1).

84613894019 is an equidigital number, since it uses as much as digits as its factorization.

84613894019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 84613894019 in words is "eighty-four billion, six hundred thirteen million, eight hundred ninety-four thousand, nineteen".