82426575678149 has 2 divisors, whose sum is σ = 82426575678150. Its totient is φ = 82426575678148.

The previous prime is 82426575678143. The next prime is 82426575678313. The reversal of 82426575678149 is 94187657562428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66224195730625 + 16202379947524 = 8137825^2 + 4025218^2 .

It is a cyclic number.

It is not a de Polignac number, because 82426575678149 - 2⁸ = 82426575677893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82426575678143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41213287839074 + 41213287839075.

It is an arithmetic number, because the mean of its divisors is an integer number (41213287839075).

Almost surely, 2^{82426575678149} is an apocalyptic number.

It is an amenable number.

82426575678149 is a deficient number, since it is larger than the sum of its proper divisors (1).

82426575678149 is an equidigital number, since it uses as much as digits as its factorization.

82426575678149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1625702400, while the sum is 74.

The spelling of 82426575678149 in words is "eighty-two trillion, four hundred twenty-six billion, five hundred seventy-five million, six hundred seventy-eight thousand, one hundred forty-nine".