8454870491069 has 2 divisors, whose sum is σ = 8454870491070. Its totient is φ = 8454870491068.

The previous prime is 8454870491029. The next prime is 8454870491107. The reversal of 8454870491069 is 9601940784548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4977160212025 + 3477710279044 = 2230955^2 + 1864862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8454870491069 is a prime.

It is a super-2 number, since 2×8454870491069² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8454870490996 and 8454870491014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8454870491029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227435245534 + 4227435245535.

It is an arithmetic number, because the mean of its divisors is an integer number (4227435245535).

Almost surely, 2^{8454870491069} is an apocalyptic number.

It is an amenable number.

8454870491069 is a deficient number, since it is larger than the sum of its proper divisors (1).

8454870491069 is an equidigital number, since it uses as much as digits as its factorization.

8454870491069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 8454870491069 in words is "eight trillion, four hundred fifty-four billion, eight hundred seventy million, four hundred ninety-one thousand, sixty-nine".