82175911099649 has 2 divisors, whose sum is σ = 82175911099650. Its totient is φ = 82175911099648.

The previous prime is 82175911099631. The next prime is 82175911099663. The reversal of 82175911099649 is 94699011957128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78389508826225 + 3786402273424 = 8853785^2 + 1945868^2 .

It is a cyclic number.

It is not a de Polignac number, because 82175911099649 - 2⁴⁴ = 64583725055233 is a prime.

It is not a weakly prime, because it can be changed into another prime (82175911029649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41087955549824 + 41087955549825.

It is an arithmetic number, because the mean of its divisors is an integer number (41087955549825).

Almost surely, 2^{82175911099649} is an apocalyptic number.

It is an amenable number.

82175911099649 is a deficient number, since it is larger than the sum of its proper divisors (1).

82175911099649 is an equidigital number, since it uses as much as digits as its factorization.

82175911099649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88179840, while the sum is 71.

The spelling of 82175911099649 in words is "eighty-two trillion, one hundred seventy-five billion, nine hundred eleven million, ninety-nine thousand, six hundred forty-nine".