2086871090 has 16 divisors (see below), whose sum is σ = 3793561560. Its totient is φ = 826483200.

The previous prime is 2086871069. The next prime is 2086871107. The reversal of 2086871090 is 901786802.

It can be written as a sum of positive squares in 4 ways, for example, as 1782612841 + 304258249 = 42221^2 + 17443^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032095 + ... + 1034114.

Almost surely, 2^2086871090 is an apocalyptic number.

2086871090 is a deficient number, since it is larger than the sum of its proper divisors (1706690470).

2086871090 is a wasteful number, since it uses less digits than its factorization.

2086871090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066317.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 2086871090 is about 45682.2842029599. The cubic root of 2086871090 is about 1277.9049161766.

The spelling of 2086871090 in words is "two billion, eighty-six million, eight hundred seventy-one thousand, ninety".