84628455726469 has 2 divisors, whose sum is σ = 84628455726470. Its totient is φ = 84628455726468.

The previous prime is 84628455726407. The next prime is 84628455726487. The reversal of 84628455726469 is 96462755482648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73071073578244 + 11557382148225 = 8548162^2 + 3399615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84628455726469 is a prime.

It is a super-2 number, since 2×84628455726469² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84628455726395 and 84628455726404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84628452726469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42314227863234 + 42314227863235.

It is an arithmetic number, because the mean of its divisors is an integer number (42314227863235).

Almost surely, 2^{84628455726469} is an apocalyptic number.

It is an amenable number.

84628455726469 is a deficient number, since it is larger than the sum of its proper divisors (1).

84628455726469 is an equidigital number, since it uses as much as digits as its factorization.

84628455726469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5573836800, while the sum is 76.

The spelling of 84628455726469 in words is "eighty-four trillion, six hundred twenty-eight billion, four hundred fifty-five million, seven hundred twenty-six thousand, four hundred sixty-nine".