82681335266577 has 16 divisors (see below), whose sum is σ = 113860468948608. Its totient is φ = 53340039492480.

The previous prime is 82681335266567. The next prime is 82681335266581. The reversal of 82681335266577 is 77566253318628.

It is not a de Polignac number, because 82681335266577 - 2³¹ = 82679187782929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82681335266567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561689749 + ... + 3561712962.

It is an arithmetic number, because the mean of its divisors is an integer number (7116279309288).

Almost surely, 2^{82681335266577} is an apocalyptic number.

It is an amenable number.

82681335266577 is a deficient number, since it is larger than the sum of its proper divisors (31179133682031).

82681335266577 is a wasteful number, since it uses less digits than its factorization.

82681335266577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123402840.

The product of its digits is 609638400, while the sum is 69.

The spelling of 82681335266577 in words is "eighty-two trillion, six hundred eighty-one billion, three hundred thirty-five million, two hundred sixty-six thousand, five hundred seventy-seven".