82861393399 has 2 divisors, whose sum is σ = 82861393400. Its totient is φ = 82861393398.

The previous prime is 82861393379. The next prime is 82861393457. The reversal of 82861393399 is 99339316828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82861393399 - 2¹¹ = 82861391351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82861393309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41430696699 + 41430696700.

It is an arithmetic number, because the mean of its divisors is an integer number (41430696700).

Almost surely, 2^82861393399 is an apocalyptic number.

82861393399 is a deficient number, since it is larger than the sum of its proper divisors (1).

82861393399 is an equidigital number, since it uses as much as digits as its factorization.

82861393399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15116544, while the sum is 61.

The spelling of 82861393399 in words is "eighty-two billion, eight hundred sixty-one million, three hundred ninety-three thousand, three hundred ninety-nine".