82418925066613 has 2 divisors, whose sum is σ = 82418925066614. Its totient is φ = 82418925066612.

The previous prime is 82418925066607. The next prime is 82418925066629. The reversal of 82418925066613 is 31666052981428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58170854428324 + 24248070638289 = 7626982^2 + 4924233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82418925066613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82418925066013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41209462533306 + 41209462533307.

It is an arithmetic number, because the mean of its divisors is an integer number (41209462533307).

Almost surely, 2^{82418925066613} is an apocalyptic number.

It is an amenable number.

82418925066613 is a deficient number, since it is larger than the sum of its proper divisors (1).

82418925066613 is an equidigital number, since it uses as much as digits as its factorization.

82418925066613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 82418925066613 in words is "eighty-two trillion, four hundred eighteen billion, nine hundred twenty-five million, sixty-six thousand, six hundred thirteen".