828473458669 has 2 divisors, whose sum is σ = 828473458670. Its totient is φ = 828473458668.

The previous prime is 828473458661. The next prime is 828473458717. The reversal of 828473458669 is 966854374828.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625760102500 + 202713356169 = 791050^2 + 450237^2 .

It is a cyclic number.

It is not a de Polignac number, because 828473458669 - 2³ = 828473458661 is a prime.

It is a super-2 number, since 2×828473458669² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 828473458598 and 828473458607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828473458661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414236729334 + 414236729335.

It is an arithmetic number, because the mean of its divisors is an integer number (414236729335).

Almost surely, 2^828473458669 is an apocalyptic number.

It is an amenable number.

828473458669 is a deficient number, since it is larger than the sum of its proper divisors (1).

828473458669 is an equidigital number, since it uses as much as digits as its factorization.

828473458669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 557383680, while the sum is 70.

The spelling of 828473458669 in words is "eight hundred twenty-eight billion, four hundred seventy-three million, four hundred fifty-eight thousand, six hundred sixty-nine".