820359883267 has 2 divisors, whose sum is σ = 820359883268. Its totient is φ = 820359883266.

The previous prime is 820359883237. The next prime is 820359883307. The reversal of 820359883267 is 762388953028.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 820359883267 - 2²³ = 820351494659 is a prime.

It is not a weakly prime, because it can be changed into another prime (820359883237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410179941633 + 410179941634.

It is an arithmetic number, because the mean of its divisors is an integer number (410179941634).

Almost surely, 2^820359883267 is an apocalyptic number.

820359883267 is a deficient number, since it is larger than the sum of its proper divisors (1).

820359883267 is an equidigital number, since it uses as much as digits as its factorization.

820359883267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 820359883267 in words is "eight hundred twenty billion, three hundred fifty-nine million, eight hundred eighty-three thousand, two hundred sixty-seven".