82879488457 has 2 divisors, whose sum is σ = 82879488458. Its totient is φ = 82879488456.

The previous prime is 82879488427. The next prime is 82879488463. The reversal of 82879488457 is 75488497828.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63727973136 + 19151515321 = 252444^2 + 138389^2 .

It is a cyclic number.

It is not a de Polignac number, because 82879488457 - 2¹⁹ = 82878964169 is a prime.

It is not a weakly prime, because it can be changed into another prime (82879488427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41439744228 + 41439744229.

It is an arithmetic number, because the mean of its divisors is an integer number (41439744229).

Almost surely, 2^82879488457 is an apocalyptic number.

It is an amenable number.

82879488457 is a deficient number, since it is larger than the sum of its proper divisors (1).

82879488457 is an equidigital number, since it uses as much as digits as its factorization.

82879488457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 289013760, while the sum is 70.

The spelling of 82879488457 in words is "eighty-two billion, eight hundred seventy-nine million, four hundred eighty-eight thousand, four hundred fifty-seven".