8205123127782 has 32 divisors (see below), whose sum is σ = 18980525797632. Its totient is φ = 2316076062624.

The previous prime is 8205123127777. The next prime is 8205123127807. The reversal of 8205123127782 is 2877213215028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176864433 + ... + 1176871404.

It is an arithmetic number, because the mean of its divisors is an integer number (593141431176).

Almost surely, 2^{8205123127782} is an apocalyptic number.

8205123127782 is an abundant number, since it is smaller than the sum of its proper divisors (10775402669850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8205123127782 is a wasteful number, since it uses less digits than its factorization.

8205123127782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353735932.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 8205123127782 in words is "eight trillion, two hundred five billion, one hundred twenty-three million, one hundred twenty-seven thousand, seven hundred eighty-two".