84623889103493 has 2 divisors, whose sum is σ = 84623889103494. Its totient is φ = 84623889103492.

The previous prime is 84623889103361. The next prime is 84623889103519. The reversal of 84623889103493 is 39430198832648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67038136533124 + 17585752570369 = 8187682^2 + 4193537^2 .

It is a cyclic number.

It is not a de Polignac number, because 84623889103493 - 2⁴⁴ = 67031703059077 is a prime.

It is a super-2 number, since 2×84623889103493² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84623889105493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42311944551746 + 42311944551747.

It is an arithmetic number, because the mean of its divisors is an integer number (42311944551747).

Almost surely, 2^{84623889103493} is an apocalyptic number.

It is an amenable number.

84623889103493 is a deficient number, since it is larger than the sum of its proper divisors (1).

84623889103493 is an equidigital number, since it uses as much as digits as its factorization.

84623889103493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 68.

The spelling of 84623889103493 in words is "eighty-four trillion, six hundred twenty-three billion, eight hundred eighty-nine million, one hundred three thousand, four hundred ninety-three".