82878023287 has 2 divisors, whose sum is σ = 82878023288. Its totient is φ = 82878023286.

The previous prime is 82878023279. The next prime is 82878023311. The reversal of 82878023287 is 78232087828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82878023287 - 2³ = 82878023279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82878023087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41439011643 + 41439011644.

It is an arithmetic number, because the mean of its divisors is an integer number (41439011644).

Almost surely, 2^82878023287 is an apocalyptic number.

82878023287 is a deficient number, since it is larger than the sum of its proper divisors (1).

82878023287 is an equidigital number, since it uses as much as digits as its factorization.

82878023287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 82878023287 in words is "eighty-two billion, eight hundred seventy-eight million, twenty-three thousand, two hundred eighty-seven".