84623469317 has 2 divisors, whose sum is σ = 84623469318. Its totient is φ = 84623469316.

The previous prime is 84623469277. The next prime is 84623469319. The reversal of 84623469317 is 71396432648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56961459556 + 27662009761 = 238666^2 + 166319^2 .

It is a cyclic number.

It is not a de Polignac number, because 84623469317 - 2⁸ = 84623469061 is a prime.

It is a super-2 number, since 2×84623469317² (a number of 23 digits) contains 22 as substring.

Together with 84623469319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84623469319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42311734658 + 42311734659.

It is an arithmetic number, because the mean of its divisors is an integer number (42311734659).

Almost surely, 2^84623469317 is an apocalyptic number.

It is an amenable number.

84623469317 is a deficient number, since it is larger than the sum of its proper divisors (1).

84623469317 is an equidigital number, since it uses as much as digits as its factorization.

84623469317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 53.

The spelling of 84623469317 in words is "eighty-four billion, six hundred twenty-three million, four hundred sixty-nine thousand, three hundred seventeen".