82789962257 has 2 divisors, whose sum is σ = 82789962258. Its totient is φ = 82789962256.

The previous prime is 82789962217. The next prime is 82789962287. The reversal of 82789962257 is 75226998728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46171695376 + 36618266881 = 214876^2 + 191359^2 .

It is a cyclic number.

It is not a de Polignac number, because 82789962257 - 2¹⁴ = 82789945873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82789962193 and 82789962202.

It is not a weakly prime, because it can be changed into another prime (82789962217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41394981128 + 41394981129.

It is an arithmetic number, because the mean of its divisors is an integer number (41394981129).

Almost surely, 2^82789962257 is an apocalyptic number.

It is an amenable number.

82789962257 is a deficient number, since it is larger than the sum of its proper divisors (1).

82789962257 is an equidigital number, since it uses as much as digits as its factorization.

82789962257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840, while the sum is 65.

The spelling of 82789962257 in words is "eighty-two billion, seven hundred eighty-nine million, nine hundred sixty-two thousand, two hundred fifty-seven".