82997211247 has 2 divisors, whose sum is σ = 82997211248. Its totient is φ = 82997211246.

The previous prime is 82997211233. The next prime is 82997211259. The reversal of 82997211247 is 74211279928.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82997211247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82997211194 and 82997211203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82997212247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41498605623 + 41498605624.

It is an arithmetic number, because the mean of its divisors is an integer number (41498605624).

Almost surely, 2^82997211247 is an apocalyptic number.

82997211247 is a deficient number, since it is larger than the sum of its proper divisors (1).

82997211247 is an equidigital number, since it uses as much as digits as its factorization.

82997211247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The spelling of 82997211247 in words is "eighty-two billion, nine hundred ninety-seven million, two hundred eleven thousand, two hundred forty-seven".