82304487491 has 2 divisors, whose sum is σ = 82304487492. Its totient is φ = 82304487490.

The previous prime is 82304487403. The next prime is 82304487541. The reversal of 82304487491 is 19478440328.

It is a happy number.

It is an a-pointer prime, because the next prime (82304487541) can be obtained adding 82304487491 to its sum of digits (50).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82304487491 - 2¹⁴ = 82304471107 is a prime.

It is a super-2 number, since 2×82304487491² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82304486491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41152243745 + 41152243746.

It is an arithmetic number, because the mean of its divisors is an integer number (41152243746).

Almost surely, 2^82304487491 is an apocalyptic number.

82304487491 is a deficient number, since it is larger than the sum of its proper divisors (1).

82304487491 is an equidigital number, since it uses as much as digits as its factorization.

82304487491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 82304487491 in words is "eighty-two billion, three hundred four million, four hundred eighty-seven thousand, four hundred ninety-one".