82397021211 has 6 divisors (see below), whose sum is σ = 119017919540. Its totient is φ = 54931347468.

The previous prime is 82397021153. The next prime is 82397021221. The reversal of 82397021211 is 11212079328.

It is not a de Polignac number, because 82397021211 - 2¹⁷ = 82396890139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82397021221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4577612281 + ... + 4577612298.

Almost surely, 2^82397021211 is an apocalyptic number.

82397021211 is a deficient number, since it is larger than the sum of its proper divisors (36620898329).

82397021211 is a wasteful number, since it uses less digits than its factorization.

82397021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155224585 (or 9155224582 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 82397021211 in words is "eighty-two billion, three hundred ninety-seven million, twenty-one thousand, two hundred eleven".