82135695630857 has 4 divisors (see below), whose sum is σ = 89602577051856. Its totient is φ = 74668814209860.

The previous prime is 82135695630823. The next prime is 82135695630869. The reversal of 82135695630857 is 75803659653128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82135695630857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82135695630757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3733440710483 + ... + 3733440710504.

It is an arithmetic number, because the mean of its divisors is an integer number (22400644262964).

Almost surely, 2^{82135695630857} is an apocalyptic number.

It is an amenable number.

82135695630857 is a deficient number, since it is larger than the sum of its proper divisors (7466881420999).

82135695630857 is a wasteful number, since it uses less digits than its factorization.

82135695630857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466881420998.

The product of its (nonzero) digits is 326592000, while the sum is 68.

The spelling of 82135695630857 in words is "eighty-two trillion, one hundred thirty-five billion, six hundred ninety-five million, six hundred thirty thousand, eight hundred fifty-seven".