82386921919 has 2 divisors, whose sum is σ = 82386921920. Its totient is φ = 82386921918.

The previous prime is 82386921811. The next prime is 82386921949. The reversal of 82386921919 is 91912968328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82386921919 - 2¹⁷ = 82386790847 is a prime.

It is a super-2 number, since 2×82386921919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82386921949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41193460959 + 41193460960.

It is an arithmetic number, because the mean of its divisors is an integer number (41193460960).

Almost surely, 2^82386921919 is an apocalyptic number.

82386921919 is a deficient number, since it is larger than the sum of its proper divisors (1).

82386921919 is an equidigital number, since it uses as much as digits as its factorization.

82386921919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 58.

The spelling of 82386921919 in words is "eighty-two billion, three hundred eighty-six million, nine hundred twenty-one thousand, nine hundred nineteen".