82736447191 has 2 divisors, whose sum is σ = 82736447192. Its totient is φ = 82736447190.

The previous prime is 82736447179. The next prime is 82736447219. The reversal of 82736447191 is 19174463728.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82736447191 - 2¹⁷ = 82736316119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82736477191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41368223595 + 41368223596.

It is an arithmetic number, because the mean of its divisors is an integer number (41368223596).

Almost surely, 2^82736447191 is an apocalyptic number.

82736447191 is a deficient number, since it is larger than the sum of its proper divisors (1).

82736447191 is an equidigital number, since it uses as much as digits as its factorization.

82736447191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The spelling of 82736447191 in words is "eighty-two billion, seven hundred thirty-six million, four hundred forty-seven thousand, one hundred ninety-one".