2085782686 has 16 divisors (see below), whose sum is σ = 3385318608. Its totient is φ = 958104000.

The previous prime is 2085782593. The next prime is 2085782687. The reversal of 2085782686 is 6862875802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085782687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184615 + ... + 195586.

It is an arithmetic number, because the mean of its divisors is an integer number (211582413).

Almost surely, 2^2085782686 is an apocalyptic number.

2085782686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2085782686 is a deficient number, since it is larger than the sum of its proper divisors (1299535922).

2085782686 is a wasteful number, since it uses less digits than its factorization.

2085782686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380427.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The square root of 2085782686 is about 45670.3698912106. The cubic root of 2085782686 is about 1277.6827145111.

The spelling of 2085782686 in words is "two billion, eighty-five million, seven hundred eighty-two thousand, six hundred eighty-six".