828145494277 has 2 divisors, whose sum is σ = 828145494278. Its totient is φ = 828145494276.

The previous prime is 828145494097. The next prime is 828145494289. The reversal of 828145494277 is 772494541828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563259256036 + 264886238241 = 750506^2 + 514671^2 .

It is a cyclic number.

It is not a de Polignac number, because 828145494277 - 2³⁵ = 793785755909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828145495277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414072747138 + 414072747139.

It is an arithmetic number, because the mean of its divisors is an integer number (414072747139).

Almost surely, 2^828145494277 is an apocalyptic number.

It is an amenable number.

828145494277 is a deficient number, since it is larger than the sum of its proper divisors (1).

828145494277 is an equidigital number, since it uses as much as digits as its factorization.

828145494277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36126720, while the sum is 61.

The spelling of 828145494277 in words is "eight hundred twenty-eight billion, one hundred forty-five million, four hundred ninety-four thousand, two hundred seventy-seven".