82209611571941 has 16 divisors (see below), whose sum is σ = 93967017553920. Its totient is φ = 70455500397360.

The previous prime is 82209611571937. The next prime is 82209611571947. The reversal of 82209611571941 is 14917511690228.

It is a cyclic number.

It is not a de Polignac number, because 82209611571941 - 2² = 82209611571937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82209611571947) 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, 2394879320 + ... + 2394913646.

It is an arithmetic number, because the mean of its divisors is an integer number (5872938597120).

Almost surely, 2^{82209611571941} is an apocalyptic number.

It is an amenable number.

82209611571941 is a deficient number, since it is larger than the sum of its proper divisors (11757405981979).

82209611571941 is a wasteful number, since it uses less digits than its factorization.

82209611571941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72344.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 82209611571941 in words is "eighty-two trillion, two hundred nine billion, six hundred eleven million, five hundred seventy-one thousand, nine hundred forty-one".